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Finding the Fourth Proportional to 37.39, 51.64 and 29.12

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Solution

The fourth proportional to 37.39, 51.64 and 29.12 is: 40.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    37.39 : 51.64 = 29.12 : x
  2. Step 2: Convert to fraction form
    37.39/51.64 = 29.12/x
  3. Step 3: Cross multiply
    37.39x = 51.64 × 29.12
  4. Step 4: Simplify right side
    37.39x = 1,503.61
  5. Step 5: Solve for x
    x = 1,503.61/37.39
  6. Step 6: Final answer
    x = 40.21

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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.