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Finding the Third Proportional to 3,108.38 and 7,716.94

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Solution

The third proportional to 3,108.38 and 7,716.94 is: 19,158.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108.38 : 7,716.94 = 7,716.94 : x
  2. Step 2: Convert to fraction form
    3,108.38/7,716.94 = 7,716.94/x
  3. Step 3: Cross multiply
    3,108.38x = 7,716.94 × 7,716.94
  4. Step 4: Simplify right side
    3,108.38x = 59,551,124.38
  5. Step 5: Solve for x
    x = 59,551,124.38/3,108.38
  6. Step 6: Final answer
    x = 19,158.28

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Why These Related Problems?

These problems maintain the same ratio (2.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.