Home / 2,879.39-4,321.38-1,493.12

Finding the Fourth Proportional to 2,879.39, 4,321.38 and 1,493.12

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Solution

The fourth proportional to 2,879.39, 4,321.38 and 1,493.12 is: 2,240.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879.39 : 4,321.38 = 1,493.12 : x
  2. Step 2: Convert to fraction form
    2,879.39/4,321.38 = 1,493.12/x
  3. Step 3: Cross multiply
    2,879.39x = 4,321.38 × 1,493.12
  4. Step 4: Simplify right side
    2,879.39x = 6,452,317.30
  5. Step 5: Solve for x
    x = 6,452,317.30/2,879.39
  6. Step 6: Final answer
    x = 2,240.87

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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.