Circuit - how much voltage is going through R3?

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The discussion focuses on calculating the voltage across resistor R3 in a circuit. The voltage across R1 is given as 1.8V, leaving 1.2V for the rest of the circuit, which is across R2. The current flowing through R3 and R4 is 0.06A. The user seeks to determine the voltage across R3 and how it compares to the voltage across R2 and the combined voltage across R3 and R4. Understanding these relationships is crucial for solving the circuit problem effectively.
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Homework Statement



A picture of the circuit : http://gyazo.com/54af2ebc610eb36ea345fe7ebdbedefa

Trying to find ##R_3##.

Homework Equations


The Attempt at a Solution



I know the voltage across ##R_1## is ##1.8V##.

That leaves ##3V - 1.8V = 1.2V## for the rest of the circuit. I know the voltage across ##R_2## is ##1.2V##.

I know the current flowing through ##R_3## and ##R_4## is ##0.06A##.

Now my question is how much voltage is going through ##R_3##?

I know that ##0.06A## of current will flow through ##R_3## so I can use that with the voltage to find ##R_3##.
 
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How does the voltage across R2 compare with that across R3+R4?
 
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