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Finding the Fourth Proportional to 1,092.92, 1,508.14 and 627.16

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Solution

The fourth proportional to 1,092.92, 1,508.14 and 627.16 is: 865.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,092.92 : 1,508.14 = 627.16 : x
  2. Step 2: Convert to fraction form
    1,092.92/1,508.14 = 627.16/x
  3. Step 3: Cross multiply
    1,092.92x = 1,508.14 × 627.16
  4. Step 4: Simplify right side
    1,092.92x = 945,845.08
  5. Step 5: Solve for x
    x = 945,845.08/1,092.92
  6. Step 6: Final answer
    x = 865.43

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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.