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Finding the Fourth Proportional to 44.92, 61.97 and 28.57

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Solution

The fourth proportional to 44.92, 61.97 and 28.57 is: 39.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    44.92 : 61.97 = 28.57 : x
  2. Step 2: Convert to fraction form
    44.92/61.97 = 28.57/x
  3. Step 3: Cross multiply
    44.92x = 61.97 × 28.57
  4. Step 4: Simplify right side
    44.92x = 1,770.40
  5. Step 5: Solve for x
    x = 1,770.40/44.92
  6. Step 6: Final answer
    x = 39.41

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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.