Home / 5,249.55-7,244.37-2,891.70

Finding the Fourth Proportional to 5,249.55, 7,244.37 and 2,891.70

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Solution

The fourth proportional to 5,249.55, 7,244.37 and 2,891.70 is: 3,990.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,249.55 : 7,244.37 = 2,891.70 : x
  2. Step 2: Convert to fraction form
    5,249.55/7,244.37 = 2,891.70/x
  3. Step 3: Cross multiply
    5,249.55x = 7,244.37 × 2,891.70
  4. Step 4: Simplify right side
    5,249.55x = 20,948,544.73
  5. Step 5: Solve for x
    x = 20,948,544.73/5,249.55
  6. Step 6: Final answer
    x = 3,990.54

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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.