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Finding the Fourth Proportional to 33.61, 46.26 and 28.97

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Solution

The fourth proportional to 33.61, 46.26 and 28.97 is: 39.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    33.61 : 46.26 = 28.97 : x
  2. Step 2: Convert to fraction form
    33.61/46.26 = 28.97/x
  3. Step 3: Cross multiply
    33.61x = 46.26 × 28.97
  4. Step 4: Simplify right side
    33.61x = 1,340.15
  5. Step 5: Solve for x
    x = 1,340.15/33.61
  6. Step 6: Final answer
    x = 39.88

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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.