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Finding the Third Proportional to 1,521.75 and 3,550.13

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Solution

The third proportional to 1,521.75 and 3,550.13 is: 8,282.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521.75 : 3,550.13 = 3,550.13 : x
  2. Step 2: Convert to fraction form
    1,521.75/3,550.13 = 3,550.13/x
  3. Step 3: Cross multiply
    1,521.75x = 3,550.13 × 3,550.13
  4. Step 4: Simplify right side
    1,521.75x = 12,603,387.52
  5. Step 5: Solve for x
    x = 12,603,387.52/1,521.75
  6. Step 6: Final answer
    x = 8,282.17

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Why These Related Problems?

These problems maintain the same ratio (2.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.