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Finding the Third Proportional to 3.97 and 10.19

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Solution

The third proportional to 3.97 and 10.19 is: 26.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3.97 : 10.19 = 10.19 : x
  2. Step 2: Convert to fraction form
    3.97/10.19 = 10.19/x
  3. Step 3: Cross multiply
    3.97x = 10.19 × 10.19
  4. Step 4: Simplify right side
    3.97x = 103.84
  5. Step 5: Solve for x
    x = 103.84/3.97
  6. Step 6: Final answer
    x = 26.13

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Why These Related Problems?

These problems maintain the same ratio (2.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.