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Finding the Fourth Proportional to 937.32, 1,293.78 and 605.74

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Solution

The fourth proportional to 937.32, 1,293.78 and 605.74 is: 836.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    937.32 : 1,293.78 = 605.74 : x
  2. Step 2: Convert to fraction form
    937.32/1,293.78 = 605.74/x
  3. Step 3: Cross multiply
    937.32x = 1,293.78 × 605.74
  4. Step 4: Simplify right side
    937.32x = 783,694.30
  5. Step 5: Solve for x
    x = 783,694.30/937.32
  6. Step 6: Final answer
    x = 836.10

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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.