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Finding the Third Proportional to 2,447 and 5,440

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Solution

The third proportional to 2,447 and 5,440 is: 12,093.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,447 : 5,440 = 5,440 : x
  2. Step 2: Convert to fraction form
    2,447/5,440 = 5,440/x
  3. Step 3: Cross multiply
    2,447x = 5,440 × 5,440
  4. Step 4: Simplify right side
    2,447x = 29,593,600
  5. Step 5: Solve for x
    x = 29,593,600/2,447
  6. Step 6: Final answer
    x = 12,093.83

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.