Home / 3,853.41-5,779.94-2,679.95

Finding the Fourth Proportional to 3,853.41, 5,779.94 and 2,679.95

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Solution

The fourth proportional to 3,853.41, 5,779.94 and 2,679.95 is: 4,019.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,853.41 : 5,779.94 = 2,679.95 : x
  2. Step 2: Convert to fraction form
    3,853.41/5,779.94 = 2,679.95/x
  3. Step 3: Cross multiply
    3,853.41x = 5,779.94 × 2,679.95
  4. Step 4: Simplify right side
    3,853.41x = 15,489,907.90
  5. Step 5: Solve for x
    x = 15,489,907.90/3,853.41
  6. Step 6: Final answer
    x = 4,019.79

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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.