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Finding the Third Proportional to 3,642.47 and 5,451.05

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Solution

The third proportional to 3,642.47 and 5,451.05 is: 8,157.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,642.47 : 5,451.05 = 5,451.05 : x
  2. Step 2: Convert to fraction form
    3,642.47/5,451.05 = 5,451.05/x
  3. Step 3: Cross multiply
    3,642.47x = 5,451.05 × 5,451.05
  4. Step 4: Simplify right side
    3,642.47x = 29,713,912.03
  5. Step 5: Solve for x
    x = 29,713,912.03/3,642.47
  6. Step 6: Final answer
    x = 8,157.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.