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Finding the Third Proportional to 627.38 and 1,376.63

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Solution

The third proportional to 627.38 and 1,376.63 is: 3,020.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.38 : 1,376.63 = 1,376.63 : x
  2. Step 2: Convert to fraction form
    627.38/1,376.63 = 1,376.63/x
  3. Step 3: Cross multiply
    627.38x = 1,376.63 × 1,376.63
  4. Step 4: Simplify right side
    627.38x = 1,895,096.39
  5. Step 5: Solve for x
    x = 1,895,096.39/627.38
  6. Step 6: Final answer
    x = 3,020.68

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.