Home / 3,811.90-5,721.94-3,375.85

Finding the Fourth Proportional to 3,811.90, 5,721.94 and 3,375.85

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Solution

The fourth proportional to 3,811.90, 5,721.94 and 3,375.85 is: 5,067.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.90 : 5,721.94 = 3,375.85 : x
  2. Step 2: Convert to fraction form
    3,811.90/5,721.94 = 3,375.85/x
  3. Step 3: Cross multiply
    3,811.90x = 5,721.94 × 3,375.85
  4. Step 4: Simplify right side
    3,811.90x = 19,316,411.15
  5. Step 5: Solve for x
    x = 19,316,411.15/3,811.90
  6. Step 6: Final answer
    x = 5,067.40

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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.