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Finding the Third Proportional to 3,719 and 8,636

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Solution

The third proportional to 3,719 and 8,636 is: 20,053.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,719 : 8,636 = 8,636 : x
  2. Step 2: Convert to fraction form
    3,719/8,636 = 8,636/x
  3. Step 3: Cross multiply
    3,719x = 8,636 × 8,636
  4. Step 4: Simplify right side
    3,719x = 74,580,496
  5. Step 5: Solve for x
    x = 74,580,496/3,719
  6. Step 6: Final answer
    x = 20,053.91

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.