Home / 3,919.20-5,877.52-1,453.92

Finding the Fourth Proportional to 3,919.20, 5,877.52 and 1,453.92

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Solution

The fourth proportional to 3,919.20, 5,877.52 and 1,453.92 is: 2,180.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.20 : 5,877.52 = 1,453.92 : x
  2. Step 2: Convert to fraction form
    3,919.20/5,877.52 = 1,453.92/x
  3. Step 3: Cross multiply
    3,919.20x = 5,877.52 × 1,453.92
  4. Step 4: Simplify right side
    3,919.20x = 8,545,443.88
  5. Step 5: Solve for x
    x = 8,545,443.88/3,919.20
  6. Step 6: Final answer
    x = 2,180.41

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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.