Home / 4,879.21-7,319.57-1,591.54

Finding the Fourth Proportional to 4,879.21, 7,319.57 and 1,591.54

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Solution

The fourth proportional to 4,879.21, 7,319.57 and 1,591.54 is: 2,387.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,879.21 : 7,319.57 = 1,591.54 : x
  2. Step 2: Convert to fraction form
    4,879.21/7,319.57 = 1,591.54/x
  3. Step 3: Cross multiply
    4,879.21x = 7,319.57 × 1,591.54
  4. Step 4: Simplify right side
    4,879.21x = 11,649,388.44
  5. Step 5: Solve for x
    x = 11,649,388.44/4,879.21
  6. Step 6: Final answer
    x = 2,387.56

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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.