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Finding the Third Proportional to 3.38 and 3.56

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Solution

The third proportional to 3.38 and 3.56 is: 3.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3.38 : 3.56 = 3.56 : x
  2. Step 2: Convert to fraction form
    3.38/3.56 = 3.56/x
  3. Step 3: Cross multiply
    3.38x = 3.56 × 3.56
  4. Step 4: Simplify right side
    3.38x = 12.69
  5. Step 5: Solve for x
    x = 12.69/3.38
  6. Step 6: Final answer
    x = 3.76

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Why These Related Problems?

These problems maintain the same ratio (1.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.