Home / 3,183.18-4,389.03-2,949.90

Finding the Fourth Proportional to 3,183.18, 4,389.03 and 2,949.90

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Solution

The fourth proportional to 3,183.18, 4,389.03 and 2,949.90 is: 4,067.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,183.18 : 4,389.03 = 2,949.90 : x
  2. Step 2: Convert to fraction form
    3,183.18/4,389.03 = 2,949.90/x
  3. Step 3: Cross multiply
    3,183.18x = 4,389.03 × 2,949.90
  4. Step 4: Simplify right side
    3,183.18x = 12,947,199.60
  5. Step 5: Solve for x
    x = 12,947,199.60/3,183.18
  6. Step 6: Final answer
    x = 4,067.38

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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.