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Finding the Third Proportional to 3,990.75 and 6,006.75

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Solution

The third proportional to 3,990.75 and 6,006.75 is: 9,041.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990.75 : 6,006.75 = 6,006.75 : x
  2. Step 2: Convert to fraction form
    3,990.75/6,006.75 = 6,006.75/x
  3. Step 3: Cross multiply
    3,990.75x = 6,006.75 × 6,006.75
  4. Step 4: Simplify right side
    3,990.75x = 36,081,045.56
  5. Step 5: Solve for x
    x = 36,081,045.56/3,990.75
  6. Step 6: Final answer
    x = 9,041.17

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.