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Finding the Third Proportional to 3,440.25 and 5,340.38

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Solution

The third proportional to 3,440.25 and 5,340.38 is: 8,289.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,440.25 : 5,340.38 = 5,340.38 : x
  2. Step 2: Convert to fraction form
    3,440.25/5,340.38 = 5,340.38/x
  3. Step 3: Cross multiply
    3,440.25x = 5,340.38 × 5,340.38
  4. Step 4: Simplify right side
    3,440.25x = 28,519,605.14
  5. Step 5: Solve for x
    x = 28,519,605.14/3,440.25
  6. Step 6: Final answer
    x = 8,289.98

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.