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Finding the Fourth Proportional to 937.55, 1,400.23 and 881.66

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Solution

The fourth proportional to 937.55, 1,400.23 and 881.66 is: 1,316.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    937.55 : 1,400.23 = 881.66 : x
  2. Step 2: Convert to fraction form
    937.55/1,400.23 = 881.66/x
  3. Step 3: Cross multiply
    937.55x = 1,400.23 × 881.66
  4. Step 4: Simplify right side
    937.55x = 1,234,526.78
  5. Step 5: Solve for x
    x = 1,234,526.78/937.55
  6. Step 6: Final answer
    x = 1,316.76

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.