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Finding the Third Proportional to 3,551 and 4,343

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Solution

The third proportional to 3,551 and 4,343 is: 5,311.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,551 : 4,343 = 4,343 : x
  2. Step 2: Convert to fraction form
    3,551/4,343 = 4,343/x
  3. Step 3: Cross multiply
    3,551x = 4,343 × 4,343
  4. Step 4: Simplify right side
    3,551x = 18,861,649
  5. Step 5: Solve for x
    x = 18,861,649/3,551
  6. Step 6: Final answer
    x = 5,311.64

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Why These Related Problems?

These problems maintain the same ratio (1.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.