Home / 3,191.11-4,403.34-1,863.85

Finding the Fourth Proportional to 3,191.11, 4,403.34 and 1,863.85

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Solution

The fourth proportional to 3,191.11, 4,403.34 and 1,863.85 is: 2,571.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.11 : 4,403.34 = 1,863.85 : x
  2. Step 2: Convert to fraction form
    3,191.11/4,403.34 = 1,863.85/x
  3. Step 3: Cross multiply
    3,191.11x = 4,403.34 × 1,863.85
  4. Step 4: Simplify right side
    3,191.11x = 8,207,165.26
  5. Step 5: Solve for x
    x = 8,207,165.26/3,191.11
  6. Step 6: Final answer
    x = 2,571.88

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Similar ratio
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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.