Home / 3,991.19-5,508-2,222.82

Finding the Fourth Proportional to 3,991.19, 5,508 and 2,222.82

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Solution

The fourth proportional to 3,991.19, 5,508 and 2,222.82 is: 3,067.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991.19 : 5,508 = 2,222.82 : x
  2. Step 2: Convert to fraction form
    3,991.19/5,508 = 2,222.82/x
  3. Step 3: Cross multiply
    3,991.19x = 5,508 × 2,222.82
  4. Step 4: Simplify right side
    3,991.19x = 12,243,292.56
  5. Step 5: Solve for x
    x = 12,243,292.56/3,991.19
  6. Step 6: Final answer
    x = 3,067.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.