Home / 2,779.20-4,168.68-1,135.32

Finding the Fourth Proportional to 2,779.20, 4,168.68 and 1,135.32

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Solution

The fourth proportional to 2,779.20, 4,168.68 and 1,135.32 is: 1,702.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,779.20 : 4,168.68 = 1,135.32 : x
  2. Step 2: Convert to fraction form
    2,779.20/4,168.68 = 1,135.32/x
  3. Step 3: Cross multiply
    2,779.20x = 4,168.68 × 1,135.32
  4. Step 4: Simplify right side
    2,779.20x = 4,732,785.78
  5. Step 5: Solve for x
    x = 4,732,785.78/2,779.20
  6. Step 6: Final answer
    x = 1,702.93

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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.