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Finding the Third Proportional to 4.82 and 7.29

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Solution

The third proportional to 4.82 and 7.29 is: 11.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4.82 : 7.29 = 7.29 : x
  2. Step 2: Convert to fraction form
    4.82/7.29 = 7.29/x
  3. Step 3: Cross multiply
    4.82x = 7.29 × 7.29
  4. Step 4: Simplify right side
    4.82x = 53.12
  5. Step 5: Solve for x
    x = 53.12/4.82
  6. Step 6: Final answer
    x = 11.03

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.