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Finding the Fourth Proportional to 932.02, 1,397.71 and 383.92

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Solution

The fourth proportional to 932.02, 1,397.71 and 383.92 is: 575.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    932.02 : 1,397.71 = 383.92 : x
  2. Step 2: Convert to fraction form
    932.02/1,397.71 = 383.92/x
  3. Step 3: Cross multiply
    932.02x = 1,397.71 × 383.92
  4. Step 4: Simplify right side
    932.02x = 536,608.82
  5. Step 5: Solve for x
    x = 536,608.82/932.02
  6. Step 6: Final answer
    x = 575.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.