Home / 2,979.42-4,471.92-1,519.62

Finding the Fourth Proportional to 2,979.42, 4,471.92 and 1,519.62

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Solution

The fourth proportional to 2,979.42, 4,471.92 and 1,519.62 is: 2,280.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.42 : 4,471.92 = 1,519.62 : x
  2. Step 2: Convert to fraction form
    2,979.42/4,471.92 = 1,519.62/x
  3. Step 3: Cross multiply
    2,979.42x = 4,471.92 × 1,519.62
  4. Step 4: Simplify right side
    2,979.42x = 6,795,619.07
  5. Step 5: Solve for x
    x = 6,795,619.07/2,979.42
  6. Step 6: Final answer
    x = 2,280.85

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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.