Question about Sound an intensiy

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SUMMARY

The discussion focuses on calculating the distance required to perceive a 4000Hz sound at the same intensity level as a 500Hz sound, which is 4.0x10^-4 W/m² at 1.0m from the speaker. It is established that intensity is proportional to the square of the frequency. To solve the problem, one must first determine the intensity at 1m for the 4000Hz sound and then apply the inverse square law to find the necessary distance for the intensity to equal 4.0x10^-4 W/m².

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Homework Statement



A speaker delivers 500Hz sound at an intensity of 4.0x10^-4 W/m² when measured at a distance of 1.0m from the speaker. At what distance from the speaker would you have to be to hear 4000Hz sound at the same perceived loudness?


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The Attempt at a Solution



I keep getting very short distances that do not make sense. If i could get some help on how to start this it would be great.
 
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Intensity is proportional to the square of frequency. So find the intensity at 1m due to the source of 4000 Hz. Then using inverse square law find the distance where the intensity well be 4x10^-4 W/m^2
 

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