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Finding the Third Proportional to 3,869 and 4,277

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Solution

The third proportional to 3,869 and 4,277 is: 4,728.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,869 : 4,277 = 4,277 : x
  2. Step 2: Convert to fraction form
    3,869/4,277 = 4,277/x
  3. Step 3: Cross multiply
    3,869x = 4,277 × 4,277
  4. Step 4: Simplify right side
    3,869x = 18,292,729
  5. Step 5: Solve for x
    x = 18,292,729/3,869
  6. Step 6: Final answer
    x = 4,728.03

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Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.