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Finding the Third Proportional to 1,978 and 3,794

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Solution

The third proportional to 1,978 and 3,794 is: 7,277.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978 : 3,794 = 3,794 : x
  2. Step 2: Convert to fraction form
    1,978/3,794 = 3,794/x
  3. Step 3: Cross multiply
    1,978x = 3,794 × 3,794
  4. Step 4: Simplify right side
    1,978x = 14,394,436
  5. Step 5: Solve for x
    x = 14,394,436/1,978
  6. Step 6: Final answer
    x = 7,277.27

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Why These Related Problems?

These problems maintain the same ratio (1.92) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.