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Finding the Third Proportional to 3,109 and 4,349

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Solution

The third proportional to 3,109 and 4,349 is: 6,083.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109 : 4,349 = 4,349 : x
  2. Step 2: Convert to fraction form
    3,109/4,349 = 4,349/x
  3. Step 3: Cross multiply
    3,109x = 4,349 × 4,349
  4. Step 4: Simplify right side
    3,109x = 18,913,801
  5. Step 5: Solve for x
    x = 18,913,801/3,109
  6. Step 6: Final answer
    x = 6,083.56

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.