Home / 4,879.46-7,319.82-1,591.76

Finding the Fourth Proportional to 4,879.46, 7,319.82 and 1,591.76

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Solution

The fourth proportional to 4,879.46, 7,319.82 and 1,591.76 is: 2,387.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.46 : 7,319.82 = 1,591.76 : x
  2. Step 2: Convert to fraction form
    4,879.46/7,319.82 = 1,591.76/x
  3. Step 3: Cross multiply
    4,879.46x = 7,319.82 × 1,591.76
  4. Step 4: Simplify right side
    4,879.46x = 11,651,396.68
  5. Step 5: Solve for x
    x = 11,651,396.68/4,879.46
  6. Step 6: Final answer
    x = 2,387.85

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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.