Home / 5,540.20-7,645.72-3,183.08

Finding the Fourth Proportional to 5,540.20, 7,645.72 and 3,183.08

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Solution

The fourth proportional to 5,540.20, 7,645.72 and 3,183.08 is: 4,392.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,540.20 : 7,645.72 = 3,183.08 : x
  2. Step 2: Convert to fraction form
    5,540.20/7,645.72 = 3,183.08/x
  3. Step 3: Cross multiply
    5,540.20x = 7,645.72 × 3,183.08
  4. Step 4: Simplify right side
    5,540.20x = 24,336,938.42
  5. Step 5: Solve for x
    x = 24,336,938.42/5,540.20
  6. Step 6: Final answer
    x = 4,392.79

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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.