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Finding the Fourth Proportional to 937.34, 1,293.46 and 517.70

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Solution

The fourth proportional to 937.34, 1,293.46 and 517.70 is: 714.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    937.34 : 1,293.46 = 517.70 : x
  2. Step 2: Convert to fraction form
    937.34/1,293.46 = 517.70/x
  3. Step 3: Cross multiply
    937.34x = 1,293.46 × 517.70
  4. Step 4: Simplify right side
    937.34x = 669,624.24
  5. Step 5: Solve for x
    x = 669,624.24/937.34
  6. Step 6: Final answer
    x = 714.39

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Double scale
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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.