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Finding the Third Proportional to 3,639 and 8,061

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Solution

The third proportional to 3,639 and 8,061 is: 17,856.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639 : 8,061 = 8,061 : x
  2. Step 2: Convert to fraction form
    3,639/8,061 = 8,061/x
  3. Step 3: Cross multiply
    3,639x = 8,061 × 8,061
  4. Step 4: Simplify right side
    3,639x = 64,979,721
  5. Step 5: Solve for x
    x = 64,979,721/3,639
  6. Step 6: Final answer
    x = 17,856.48

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.