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Finding the Fourth Proportional to 29.79, 44.90 and 26.46

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Solution

The fourth proportional to 29.79, 44.90 and 26.46 is: 39.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    29.79 : 44.90 = 26.46 : x
  2. Step 2: Convert to fraction form
    29.79/44.90 = 26.46/x
  3. Step 3: Cross multiply
    29.79x = 44.90 × 26.46
  4. Step 4: Simplify right side
    29.79x = 1,188.12
  5. Step 5: Solve for x
    x = 1,188.12/29.79
  6. Step 6: Final answer
    x = 39.88

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.