Home / 3,721.38-5,135.31-2,542.74

Finding the Fourth Proportional to 3,721.38, 5,135.31 and 2,542.74

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Solution

The fourth proportional to 3,721.38, 5,135.31 and 2,542.74 is: 3,508.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.38 : 5,135.31 = 2,542.74 : x
  2. Step 2: Convert to fraction form
    3,721.38/5,135.31 = 2,542.74/x
  3. Step 3: Cross multiply
    3,721.38x = 5,135.31 × 2,542.74
  4. Step 4: Simplify right side
    3,721.38x = 13,057,758.15
  5. Step 5: Solve for x
    x = 13,057,758.15/3,721.38
  6. Step 6: Final answer
    x = 3,508.85

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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.