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Finding the Third Proportional to 3,670.50 and 5,478.75

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Solution

The third proportional to 3,670.50 and 5,478.75 is: 8,177.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,670.50 : 5,478.75 = 5,478.75 : x
  2. Step 2: Convert to fraction form
    3,670.50/5,478.75 = 5,478.75/x
  3. Step 3: Cross multiply
    3,670.50x = 5,478.75 × 5,478.75
  4. Step 4: Simplify right side
    3,670.50x = 30,016,701.56
  5. Step 5: Solve for x
    x = 30,016,701.56/3,670.50
  6. Step 6: Final answer
    x = 8,177.82

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.