I'm not sure how they got this answer

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The discussion revolves around confusion regarding a specific calculation involving ratios. A user questions how a particular answer was derived and seeks clarification on using ratios in calculations. The equation presented shows a proportional relationship, indicating that multiple equivalent setups can yield the same result. Another participant acknowledges a potential error in their calculation, attributing it to a faulty calculator. The conversation highlights the importance of reliable tools in mathematical computations.
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Homework Statement





attachment.php?attachmentid=69157&stc=1&d=1398623557.png


I'm not sure how they arrived at that number, or how they "scaled it."

Thanks!
 

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Do you know what ratio is? And how to use it in calculations?

4.03128 -> 0.02758
2.32 -> x

\frac {4.03128}{0.02758} = \frac {2.32}{x}

Actually it can be set up in several different, but equivalent ways. In the end they yield exactly the same result.
 
Borek said:
Do you know what ratio is? And how to use it in calculations?

4.03128 -> 0.02758
2.32 -> x

\frac {4.03128}{0.02758} = \frac {2.32}{x}

Actually it can be set up in several different, but equivalent ways. In the end they yield exactly the same result.

Oh, thanks. It must have been a calculator error on my part because I had the same equation set up, only I got 0.0155!

Note to self, don't use dollar store calculators :smile:
 
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