Home / 3,727.28-5,143.52-2,402.32

Finding the Fourth Proportional to 3,727.28, 5,143.52 and 2,402.32

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Solution

The fourth proportional to 3,727.28, 5,143.52 and 2,402.32 is: 3,315.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,727.28 : 5,143.52 = 2,402.32 : x
  2. Step 2: Convert to fraction form
    3,727.28/5,143.52 = 2,402.32/x
  3. Step 3: Cross multiply
    3,727.28x = 5,143.52 × 2,402.32
  4. Step 4: Simplify right side
    3,727.28x = 12,356,380.97
  5. Step 5: Solve for x
    x = 12,356,380.97/3,727.28
  6. Step 6: Final answer
    x = 3,315.12

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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.