Home / 3,862.20-5,331.42-2,290.44

Finding the Fourth Proportional to 3,862.20, 5,331.42 and 2,290.44

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Solution

The fourth proportional to 3,862.20, 5,331.42 and 2,290.44 is: 3,161.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,862.20 : 5,331.42 = 2,290.44 : x
  2. Step 2: Convert to fraction form
    3,862.20/5,331.42 = 2,290.44/x
  3. Step 3: Cross multiply
    3,862.20x = 5,331.42 × 2,290.44
  4. Step 4: Simplify right side
    3,862.20x = 12,211,297.62
  5. Step 5: Solve for x
    x = 12,211,297.62/3,862.20
  6. Step 6: Final answer
    x = 3,161.75

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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.