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Finding the Third Proportional to 7.91 and 16.44

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Solution

The third proportional to 7.91 and 16.44 is: 34.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7.91 : 16.44 = 16.44 : x
  2. Step 2: Convert to fraction form
    7.91/16.44 = 16.44/x
  3. Step 3: Cross multiply
    7.91x = 16.44 × 16.44
  4. Step 4: Simplify right side
    7.91x = 270.19
  5. Step 5: Solve for x
    x = 270.19/7.91
  6. Step 6: Final answer
    x = 34.17

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.