Home / 2,779.55-4,170.20-1,480.71

Finding the Fourth Proportional to 2,779.55, 4,170.20 and 1,480.71

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Solution

The fourth proportional to 2,779.55, 4,170.20 and 1,480.71 is: 2,221.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,779.55 : 4,170.20 = 1,480.71 : x
  2. Step 2: Convert to fraction form
    2,779.55/4,170.20 = 1,480.71/x
  3. Step 3: Cross multiply
    2,779.55x = 4,170.20 × 1,480.71
  4. Step 4: Simplify right side
    2,779.55x = 6,174,849.44
  5. Step 5: Solve for x
    x = 6,174,849.44/2,779.55
  6. Step 6: Final answer
    x = 2,221.53

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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.