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Finding the Fourth Proportional to 937.30, 1,403.20 and 740.92

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Solution

The fourth proportional to 937.30, 1,403.20 and 740.92 is: 1,109.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    937.30 : 1,403.20 = 740.92 : x
  2. Step 2: Convert to fraction form
    937.30/1,403.20 = 740.92/x
  3. Step 3: Cross multiply
    937.30x = 1,403.20 × 740.92
  4. Step 4: Simplify right side
    937.30x = 1,039,658.94
  5. Step 5: Solve for x
    x = 1,039,658.94/937.30
  6. Step 6: Final answer
    x = 1,109.21

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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.