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Finding the Third Proportional to 2,782 and 4,295

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Solution

The third proportional to 2,782 and 4,295 is: 6,630.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782 : 4,295 = 4,295 : x
  2. Step 2: Convert to fraction form
    2,782/4,295 = 4,295/x
  3. Step 3: Cross multiply
    2,782x = 4,295 × 4,295
  4. Step 4: Simplify right side
    2,782x = 18,447,025
  5. Step 5: Solve for x
    x = 18,447,025/2,782
  6. Step 6: Final answer
    x = 6,630.85

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.