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Finding the Fourth Proportional to 627.91, 937.36 and 545.92

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Solution

The fourth proportional to 627.91, 937.36 and 545.92 is: 814.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.91 : 937.36 = 545.92 : x
  2. Step 2: Convert to fraction form
    627.91/937.36 = 545.92/x
  3. Step 3: Cross multiply
    627.91x = 937.36 × 545.92
  4. Step 4: Simplify right side
    627.91x = 511,723.57
  5. Step 5: Solve for x
    x = 511,723.57/627.91
  6. Step 6: Final answer
    x = 814.96

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.