Home / 3,853.11-5,779.67-2,759.61

Finding the Fourth Proportional to 3,853.11, 5,779.67 and 2,759.61

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Solution

The fourth proportional to 3,853.11, 5,779.67 and 2,759.61 is: 4,139.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,853.11 : 5,779.67 = 2,759.61 : x
  2. Step 2: Convert to fraction form
    3,853.11/5,779.67 = 2,759.61/x
  3. Step 3: Cross multiply
    3,853.11x = 5,779.67 × 2,759.61
  4. Step 4: Simplify right side
    3,853.11x = 15,949,621.33
  5. Step 5: Solve for x
    x = 15,949,621.33/3,853.11
  6. Step 6: Final answer
    x = 4,139.42

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1.5x scale

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.