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Finding the Third Proportional to 3.42 and 7.52

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Solution

The third proportional to 3.42 and 7.52 is: 16.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3.42 : 7.52 = 7.52 : x
  2. Step 2: Convert to fraction form
    3.42/7.52 = 7.52/x
  3. Step 3: Cross multiply
    3.42x = 7.52 × 7.52
  4. Step 4: Simplify right side
    3.42x = 56.60
  5. Step 5: Solve for x
    x = 56.60/3.42
  6. Step 6: Final answer
    x = 16.53

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.