Home / 4,512.60-6,220.80-3,715.20

Finding the Fourth Proportional to 4,512.60, 6,220.80 and 3,715.20

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Solution

The fourth proportional to 4,512.60, 6,220.80 and 3,715.20 is: 5,121.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,512.60 : 6,220.80 = 3,715.20 : x
  2. Step 2: Convert to fraction form
    4,512.60/6,220.80 = 3,715.20/x
  3. Step 3: Cross multiply
    4,512.60x = 6,220.80 × 3,715.20
  4. Step 4: Simplify right side
    4,512.60x = 23,111,516.16
  5. Step 5: Solve for x
    x = 23,111,516.16/4,512.60
  6. Step 6: Final answer
    x = 5,121.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.