Home / 3,991.58-5,508.23-2,223.14

Finding the Fourth Proportional to 3,991.58, 5,508.23 and 2,223.14

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Solution

The fourth proportional to 3,991.58, 5,508.23 and 2,223.14 is: 3,067.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991.58 : 5,508.23 = 2,223.14 : x
  2. Step 2: Convert to fraction form
    3,991.58/5,508.23 = 2,223.14/x
  3. Step 3: Cross multiply
    3,991.58x = 5,508.23 × 2,223.14
  4. Step 4: Simplify right side
    3,991.58x = 12,245,569.10
  5. Step 5: Solve for x
    x = 12,245,569.10/3,991.58
  6. Step 6: Final answer
    x = 3,067.85

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1.5x scale

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.