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Finding the Third Proportional to 3,422 and 7,087

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Solution

The third proportional to 3,422 and 7,087 is: 14,677.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,422 : 7,087 = 7,087 : x
  2. Step 2: Convert to fraction form
    3,422/7,087 = 7,087/x
  3. Step 3: Cross multiply
    3,422x = 7,087 × 7,087
  4. Step 4: Simplify right side
    3,422x = 50,225,569
  5. Step 5: Solve for x
    x = 50,225,569/3,422
  6. Step 6: Final answer
    x = 14,677.26

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.