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Finding the Third Proportional to 3,263 and 7,811

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Solution

The third proportional to 3,263 and 7,811 is: 18,698.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,263 : 7,811 = 7,811 : x
  2. Step 2: Convert to fraction form
    3,263/7,811 = 7,811/x
  3. Step 3: Cross multiply
    3,263x = 7,811 × 7,811
  4. Step 4: Simplify right side
    3,263x = 61,011,721
  5. Step 5: Solve for x
    x = 61,011,721/3,263
  6. Step 6: Final answer
    x = 18,698.05

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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.