Home / 1,979.26-2,968.92-1,517.86

Finding the Fourth Proportional to 1,979.26, 2,968.92 and 1,517.86

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Solution

The fourth proportional to 1,979.26, 2,968.92 and 1,517.86 is: 2,276.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979.26 : 2,968.92 = 1,517.86 : x
  2. Step 2: Convert to fraction form
    1,979.26/2,968.92 = 1,517.86/x
  3. Step 3: Cross multiply
    1,979.26x = 2,968.92 × 1,517.86
  4. Step 4: Simplify right side
    1,979.26x = 4,506,404.91
  5. Step 5: Solve for x
    x = 4,506,404.91/1,979.26
  6. Step 6: Final answer
    x = 2,276.81

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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.