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Finding the Third Proportional to 3,585 and 8,718

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Solution

The third proportional to 3,585 and 8,718 is: 21,200.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,585 : 8,718 = 8,718 : x
  2. Step 2: Convert to fraction form
    3,585/8,718 = 8,718/x
  3. Step 3: Cross multiply
    3,585x = 8,718 × 8,718
  4. Step 4: Simplify right side
    3,585x = 76,003,524
  5. Step 5: Solve for x
    x = 76,003,524/3,585
  6. Step 6: Final answer
    x = 21,200.43

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Why These Related Problems?

These problems maintain the same ratio (2.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.