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Finding the Third Proportional to 2,691.98 and 4,280.98

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Solution

The third proportional to 2,691.98 and 4,280.98 is: 6,807.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,691.98 : 4,280.98 = 4,280.98 : x
  2. Step 2: Convert to fraction form
    2,691.98/4,280.98 = 4,280.98/x
  3. Step 3: Cross multiply
    2,691.98x = 4,280.98 × 4,280.98
  4. Step 4: Simplify right side
    2,691.98x = 18,326,760.33
  5. Step 5: Solve for x
    x = 18,326,760.33/2,691.98
  6. Step 6: Final answer
    x = 6,807.90

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.