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Finding the Third Proportional to 2,578 and 3,447

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Solution

The third proportional to 2,578 and 3,447 is: 4,608.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578 : 3,447 = 3,447 : x
  2. Step 2: Convert to fraction form
    2,578/3,447 = 3,447/x
  3. Step 3: Cross multiply
    2,578x = 3,447 × 3,447
  4. Step 4: Simplify right side
    2,578x = 11,881,809
  5. Step 5: Solve for x
    x = 11,881,809/2,578
  6. Step 6: Final answer
    x = 4,608.93

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.