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Finding the Third Proportional to 2,864 and 3,278

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Solution

The third proportional to 2,864 and 3,278 is: 3,751.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,864 : 3,278 = 3,278 : x
  2. Step 2: Convert to fraction form
    2,864/3,278 = 3,278/x
  3. Step 3: Cross multiply
    2,864x = 3,278 × 3,278
  4. Step 4: Simplify right side
    2,864x = 10,745,284
  5. Step 5: Solve for x
    x = 10,745,284/2,864
  6. Step 6: Final answer
    x = 3,751.84

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Why These Related Problems?

These problems maintain the same ratio (1.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.