Home / 5,198.88-7,177.68-3,311.52

Finding the Fourth Proportional to 5,198.88, 7,177.68 and 3,311.52

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Solution

The fourth proportional to 5,198.88, 7,177.68 and 3,311.52 is: 4,571.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,198.88 : 7,177.68 = 3,311.52 : x
  2. Step 2: Convert to fraction form
    5,198.88/7,177.68 = 3,311.52/x
  3. Step 3: Cross multiply
    5,198.88x = 7,177.68 × 3,311.52
  4. Step 4: Simplify right side
    5,198.88x = 23,769,030.87
  5. Step 5: Solve for x
    x = 23,769,030.87/5,198.88
  6. Step 6: Final answer
    x = 4,571.95

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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.