Home / 3,781.20-5,671.15-2,682.22

Finding the Fourth Proportional to 3,781.20, 5,671.15 and 2,682.22

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Solution

The fourth proportional to 3,781.20, 5,671.15 and 2,682.22 is: 4,022.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781.20 : 5,671.15 = 2,682.22 : x
  2. Step 2: Convert to fraction form
    3,781.20/5,671.15 = 2,682.22/x
  3. Step 3: Cross multiply
    3,781.20x = 5,671.15 × 2,682.22
  4. Step 4: Simplify right side
    3,781.20x = 15,211,271.95
  5. Step 5: Solve for x
    x = 15,211,271.95/3,781.20
  6. Step 6: Final answer
    x = 4,022.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.