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Finding the Fourth Proportional to 937.27, 1,293.45 and 517.64

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Solution

The fourth proportional to 937.27, 1,293.45 and 517.64 is: 714.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    937.27 : 1,293.45 = 517.64 : x
  2. Step 2: Convert to fraction form
    937.27/1,293.45 = 517.64/x
  3. Step 3: Cross multiply
    937.27x = 1,293.45 × 517.64
  4. Step 4: Simplify right side
    937.27x = 669,541.46
  5. Step 5: Solve for x
    x = 669,541.46/937.27
  6. Step 6: Final answer
    x = 714.35

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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.