Home / 3,767.88-5,643.32-2,531.78

Finding the Fourth Proportional to 3,767.88, 5,643.32 and 2,531.78

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Solution

The fourth proportional to 3,767.88, 5,643.32 and 2,531.78 is: 3,791.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,767.88 : 5,643.32 = 2,531.78 : x
  2. Step 2: Convert to fraction form
    3,767.88/5,643.32 = 2,531.78/x
  3. Step 3: Cross multiply
    3,767.88x = 5,643.32 × 2,531.78
  4. Step 4: Simplify right side
    3,767.88x = 14,287,603.83
  5. Step 5: Solve for x
    x = 14,287,603.83/3,767.88
  6. Step 6: Final answer
    x = 3,791.95

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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.