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Finding the Third Proportional to 6,279 and 6,744.75

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Solution

The third proportional to 6,279 and 6,744.75 is: 7,245.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,279 : 6,744.75 = 6,744.75 : x
  2. Step 2: Convert to fraction form
    6,279/6,744.75 = 6,744.75/x
  3. Step 3: Cross multiply
    6,279x = 6,744.75 × 6,744.75
  4. Step 4: Simplify right side
    6,279x = 45,491,652.56
  5. Step 5: Solve for x
    x = 45,491,652.56/6,279
  6. Step 6: Final answer
    x = 7,245.05

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Why These Related Problems?

These problems maintain the same ratio (1.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.