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Finding the Third Proportional to 2,186.50 and 4,343

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Solution

The third proportional to 2,186.50 and 4,343 is: 8,626.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.50 : 4,343 = 4,343 : x
  2. Step 2: Convert to fraction form
    2,186.50/4,343 = 4,343/x
  3. Step 3: Cross multiply
    2,186.50x = 4,343 × 4,343
  4. Step 4: Simplify right side
    2,186.50x = 18,861,649
  5. Step 5: Solve for x
    x = 18,861,649/2,186.50
  6. Step 6: Final answer
    x = 8,626.41

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Why These Related Problems?

These problems maintain the same ratio (1.99) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.