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Finding the Third Proportional to 676.13 and 1,396.13

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Solution

The third proportional to 676.13 and 1,396.13 is: 2,882.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    676.13 : 1,396.13 = 1,396.13 : x
  2. Step 2: Convert to fraction form
    676.13/1,396.13 = 1,396.13/x
  3. Step 3: Cross multiply
    676.13x = 1,396.13 × 1,396.13
  4. Step 4: Simplify right side
    676.13x = 1,949,165.02
  5. Step 5: Solve for x
    x = 1,949,165.02/676.13
  6. Step 6: Final answer
    x = 2,882.85

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.