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Finding the Third Proportional to 3,839.50 and 8,225

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Solution

The third proportional to 3,839.50 and 8,225 is: 17,619.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,839.50 : 8,225 = 8,225 : x
  2. Step 2: Convert to fraction form
    3,839.50/8,225 = 8,225/x
  3. Step 3: Cross multiply
    3,839.50x = 8,225 × 8,225
  4. Step 4: Simplify right side
    3,839.50x = 67,650,625
  5. Step 5: Solve for x
    x = 67,650,625/3,839.50
  6. Step 6: Final answer
    x = 17,619.64

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.