Home / 2,879.88-4,319.02-1,236.36

Finding the Fourth Proportional to 2,879.88, 4,319.02 and 1,236.36

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Solution

The fourth proportional to 2,879.88, 4,319.02 and 1,236.36 is: 1,854.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879.88 : 4,319.02 = 1,236.36 : x
  2. Step 2: Convert to fraction form
    2,879.88/4,319.02 = 1,236.36/x
  3. Step 3: Cross multiply
    2,879.88x = 4,319.02 × 1,236.36
  4. Step 4: Simplify right side
    2,879.88x = 5,339,863.57
  5. Step 5: Solve for x
    x = 5,339,863.57/2,879.88
  6. Step 6: Final answer
    x = 1,854.20

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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.