Home / 3,919.41-5,877.93-1,578.66

Finding the Fourth Proportional to 3,919.41, 5,877.93 and 1,578.66

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Solution

The fourth proportional to 3,919.41, 5,877.93 and 1,578.66 is: 2,367.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.41 : 5,877.93 = 1,578.66 : x
  2. Step 2: Convert to fraction form
    3,919.41/5,877.93 = 1,578.66/x
  3. Step 3: Cross multiply
    3,919.41x = 5,877.93 × 1,578.66
  4. Step 4: Simplify right side
    3,919.41x = 9,279,252.97
  5. Step 5: Solve for x
    x = 9,279,252.97/3,919.41
  6. Step 6: Final answer
    x = 2,367.51

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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.