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Finding the Third Proportional to 3,179.25 and 4,687.88

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Solution

The third proportional to 3,179.25 and 4,687.88 is: 6,912.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179.25 : 4,687.88 = 4,687.88 : x
  2. Step 2: Convert to fraction form
    3,179.25/4,687.88 = 4,687.88/x
  3. Step 3: Cross multiply
    3,179.25x = 4,687.88 × 4,687.88
  4. Step 4: Simplify right side
    3,179.25x = 21,976,172.02
  5. Step 5: Solve for x
    x = 21,976,172.02/3,179.25
  6. Step 6: Final answer
    x = 6,912.38

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These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.