Home / 5,375.16-8,067.60-2,779.92

Finding the Fourth Proportional to 5,375.16, 8,067.60 and 2,779.92

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Solution

The fourth proportional to 5,375.16, 8,067.60 and 2,779.92 is: 4,172.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,375.16 : 8,067.60 = 2,779.92 : x
  2. Step 2: Convert to fraction form
    5,375.16/8,067.60 = 2,779.92/x
  3. Step 3: Cross multiply
    5,375.16x = 8,067.60 × 2,779.92
  4. Step 4: Simplify right side
    5,375.16x = 22,427,282.59
  5. Step 5: Solve for x
    x = 22,427,282.59/5,375.16
  6. Step 6: Final answer
    x = 4,172.39

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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.