Home / 5,191.20-7,163.82-2,833.29

Finding the Fourth Proportional to 5,191.20, 7,163.82 and 2,833.29

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Solution

The fourth proportional to 5,191.20, 7,163.82 and 2,833.29 is: 3,909.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,191.20 : 7,163.82 = 2,833.29 : x
  2. Step 2: Convert to fraction form
    5,191.20/7,163.82 = 2,833.29/x
  3. Step 3: Cross multiply
    5,191.20x = 7,163.82 × 2,833.29
  4. Step 4: Simplify right side
    5,191.20x = 20,297,179.57
  5. Step 5: Solve for x
    x = 20,297,179.57/5,191.20
  6. Step 6: Final answer
    x = 3,909.92

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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.