Home / 5,191.11-7,163.78-2,833.11

Finding the Fourth Proportional to 5,191.11, 7,163.78 and 2,833.11

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Solution

The fourth proportional to 5,191.11, 7,163.78 and 2,833.11 is: 3,909.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,191.11 : 7,163.78 = 2,833.11 : x
  2. Step 2: Convert to fraction form
    5,191.11/7,163.78 = 2,833.11/x
  3. Step 3: Cross multiply
    5,191.11x = 7,163.78 × 2,833.11
  4. Step 4: Simplify right side
    5,191.11x = 20,295,762.59
  5. Step 5: Solve for x
    x = 20,295,762.59/5,191.11
  6. Step 6: Final answer
    x = 3,909.72

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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.