Home / 5,382.27-8,074.49-1,919.43

Finding the Fourth Proportional to 5,382.27, 8,074.49 and 1,919.43

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Solution

The fourth proportional to 5,382.27, 8,074.49 and 1,919.43 is: 2,879.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,382.27 : 8,074.49 = 1,919.43 : x
  2. Step 2: Convert to fraction form
    5,382.27/8,074.49 = 1,919.43/x
  3. Step 3: Cross multiply
    5,382.27x = 8,074.49 × 1,919.43
  4. Step 4: Simplify right side
    5,382.27x = 15,498,408.74
  5. Step 5: Solve for x
    x = 15,498,408.74/5,382.27
  6. Step 6: Final answer
    x = 2,879.53

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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.