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Finding the Third Proportional to 1,982.29 and 4,356.91

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Solution

The third proportional to 1,982.29 and 4,356.91 is: 9,576.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,982.29 : 4,356.91 = 4,356.91 : x
  2. Step 2: Convert to fraction form
    1,982.29/4,356.91 = 4,356.91/x
  3. Step 3: Cross multiply
    1,982.29x = 4,356.91 × 4,356.91
  4. Step 4: Simplify right side
    1,982.29x = 18,982,700.15
  5. Step 5: Solve for x
    x = 18,982,700.15/1,982.29
  6. Step 6: Final answer
    x = 9,576.17

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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.