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Finding the Fourth Proportional to 3,691.73, 5,092.17 and 2,555.40

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Solution

The fourth proportional to 3,691.73, 5,092.17 and 2,555.40 is: 3,524.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,691.73 : 5,092.17 = 2,555.40 : x
  2. Step 2: Convert to fraction form
    3,691.73/5,092.17 = 2,555.40/x
  3. Step 3: Cross multiply
    3,691.73x = 5,092.17 × 2,555.40
  4. Step 4: Simplify right side
    3,691.73x = 13,012,512.09
  5. Step 5: Solve for x
    x = 13,012,512.09/3,691.73
  6. Step 6: Final answer
    x = 3,524.78

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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.