Home / 5,319.46-7,979.19-2,399.86

Finding the Fourth Proportional to 5,319.46, 7,979.19 and 2,399.86

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Solution

The fourth proportional to 5,319.46, 7,979.19 and 2,399.86 is: 3,599.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,319.46 : 7,979.19 = 2,399.86 : x
  2. Step 2: Convert to fraction form
    5,319.46/7,979.19 = 2,399.86/x
  3. Step 3: Cross multiply
    5,319.46x = 7,979.19 × 2,399.86
  4. Step 4: Simplify right side
    5,319.46x = 19,148,938.91
  5. Step 5: Solve for x
    x = 19,148,938.91/5,319.46
  6. Step 6: Final answer
    x = 3,599.79

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.