Home / 3,919.12-5,877.31-1,578.52

Finding the Fourth Proportional to 3,919.12, 5,877.31 and 1,578.52

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Solution

The fourth proportional to 3,919.12, 5,877.31 and 1,578.52 is: 2,367.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.12 : 5,877.31 = 1,578.52 : x
  2. Step 2: Convert to fraction form
    3,919.12/5,877.31 = 1,578.52/x
  3. Step 3: Cross multiply
    3,919.12x = 5,877.31 × 1,578.52
  4. Step 4: Simplify right side
    3,919.12x = 9,277,451.38
  5. Step 5: Solve for x
    x = 9,277,451.38/3,919.12
  6. Step 6: Final answer
    x = 2,367.23

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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.