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Finding the Third Proportional to 4.10 and 6.82

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Solution

The third proportional to 4.10 and 6.82 is: 11.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4.10 : 6.82 = 6.82 : x
  2. Step 2: Convert to fraction form
    4.10/6.82 = 6.82/x
  3. Step 3: Cross multiply
    4.10x = 6.82 × 6.82
  4. Step 4: Simplify right side
    4.10x = 46.56
  5. Step 5: Solve for x
    x = 46.56/4.10
  6. Step 6: Final answer
    x = 11.36

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.