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Finding the Third Proportional to 2,910.75 and 6,942.75

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Solution

The third proportional to 2,910.75 and 6,942.75 is: 16,559.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910.75 : 6,942.75 = 6,942.75 : x
  2. Step 2: Convert to fraction form
    2,910.75/6,942.75 = 6,942.75/x
  3. Step 3: Cross multiply
    2,910.75x = 6,942.75 × 6,942.75
  4. Step 4: Simplify right side
    2,910.75x = 48,201,777.56
  5. Step 5: Solve for x
    x = 48,201,777.56/2,910.75
  6. Step 6: Final answer
    x = 16,559.92

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Why These Related Problems?

These problems maintain the same ratio (2.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.