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Finding the Third Proportional to 2,866 and 3,935

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Solution

The third proportional to 2,866 and 3,935 is: 5,402.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,866 : 3,935 = 3,935 : x
  2. Step 2: Convert to fraction form
    2,866/3,935 = 3,935/x
  3. Step 3: Cross multiply
    2,866x = 3,935 × 3,935
  4. Step 4: Simplify right side
    2,866x = 15,484,225
  5. Step 5: Solve for x
    x = 15,484,225/2,866
  6. Step 6: Final answer
    x = 5,402.73

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.