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Finding the Third Proportional to 2,778 and 3,699

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Solution

The third proportional to 2,778 and 3,699 is: 4,925.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778 : 3,699 = 3,699 : x
  2. Step 2: Convert to fraction form
    2,778/3,699 = 3,699/x
  3. Step 3: Cross multiply
    2,778x = 3,699 × 3,699
  4. Step 4: Simplify right side
    2,778x = 13,682,601
  5. Step 5: Solve for x
    x = 13,682,601/2,778
  6. Step 6: Final answer
    x = 4,925.34

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.