Question

This proportion can be solved to find the unknown length, x, in the larger triangle.

Answer 1

3.61:5*100 =  (3.61*100):5 = 361:5 = 72.2

Step 1: We make the assumption that 5 is 100% since it is our output value.

Step 2: We next represent the value we seek with $x$.

Step 3: From step 1, it follows that $100\%=5$.

Step 4: In the same vein, $x\%=3.61$.

Step 5: This gives us a pair of simple equations: