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Finding the Fourth Proportional to 37.27, 55.42 and 36.86

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Solution

The fourth proportional to 37.27, 55.42 and 36.86 is: 54.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    37.27 : 55.42 = 36.86 : x
  2. Step 2: Convert to fraction form
    37.27/55.42 = 36.86/x
  3. Step 3: Cross multiply
    37.27x = 55.42 × 36.86
  4. Step 4: Simplify right side
    37.27x = 2,042.78
  5. Step 5: Solve for x
    x = 2,042.78/37.27
  6. Step 6: Final answer
    x = 54.82

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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.