Home / 2,779.29-4,170.68-1,445.22

Finding the Fourth Proportional to 2,779.29, 4,170.68 and 1,445.22

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Solution

The fourth proportional to 2,779.29, 4,170.68 and 1,445.22 is: 2,168.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,779.29 : 4,170.68 = 1,445.22 : x
  2. Step 2: Convert to fraction form
    2,779.29/4,170.68 = 1,445.22/x
  3. Step 3: Cross multiply
    2,779.29x = 4,170.68 × 1,445.22
  4. Step 4: Simplify right side
    2,779.29x = 6,027,542.92
  5. Step 5: Solve for x
    x = 6,027,542.92/2,779.29
  6. Step 6: Final answer
    x = 2,168.73

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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.