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Finding the Third Proportional to 4,485 and 8,241

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Solution

The third proportional to 4,485 and 8,241 is: 15,142.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,485 : 8,241 = 8,241 : x
  2. Step 2: Convert to fraction form
    4,485/8,241 = 8,241/x
  3. Step 3: Cross multiply
    4,485x = 8,241 × 8,241
  4. Step 4: Simplify right side
    4,485x = 67,914,081
  5. Step 5: Solve for x
    x = 67,914,081/4,485
  6. Step 6: Final answer
    x = 15,142.49

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Why These Related Problems?

These problems maintain the same ratio (1.84) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.