Home / 2,979.75-4,467.60-1,517.70

Finding the Fourth Proportional to 2,979.75, 4,467.60 and 1,517.70

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Solution

The fourth proportional to 2,979.75, 4,467.60 and 1,517.70 is: 2,275.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.75 : 4,467.60 = 1,517.70 : x
  2. Step 2: Convert to fraction form
    2,979.75/4,467.60 = 1,517.70/x
  3. Step 3: Cross multiply
    2,979.75x = 4,467.60 × 1,517.70
  4. Step 4: Simplify right side
    2,979.75x = 6,780,476.52
  5. Step 5: Solve for x
    x = 6,780,476.52/2,979.75
  6. Step 6: Final answer
    x = 2,275.52

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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.