Home / 4,077.20-6,115.79-1,613.18

Finding the Fourth Proportional to 4,077.20, 6,115.79 and 1,613.18

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Solution

The fourth proportional to 4,077.20, 6,115.79 and 1,613.18 is: 2,419.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,077.20 : 6,115.79 = 1,613.18 : x
  2. Step 2: Convert to fraction form
    4,077.20/6,115.79 = 1,613.18/x
  3. Step 3: Cross multiply
    4,077.20x = 6,115.79 × 1,613.18
  4. Step 4: Simplify right side
    4,077.20x = 9,865,843.57
  5. Step 5: Solve for x
    x = 9,865,843.57/4,077.20
  6. Step 6: Final answer
    x = 2,419.76

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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.