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Finding the Third Proportional to 2,217.80 and 4,373.58

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Solution

The third proportional to 2,217.80 and 4,373.58 is: 8,624.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,217.80 : 4,373.58 = 4,373.58 : x
  2. Step 2: Convert to fraction form
    2,217.80/4,373.58 = 4,373.58/x
  3. Step 3: Cross multiply
    2,217.80x = 4,373.58 × 4,373.58
  4. Step 4: Simplify right side
    2,217.80x = 19,128,185.62
  5. Step 5: Solve for x
    x = 19,128,185.62/2,217.80
  6. Step 6: Final answer
    x = 8,624.86

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Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.