Home / 2,579.20-3,867.88-1,019.12

Finding the Fourth Proportional to 2,579.20, 3,867.88 and 1,019.12

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Solution

The fourth proportional to 2,579.20, 3,867.88 and 1,019.12 is: 1,528.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,579.20 : 3,867.88 = 1,019.12 : x
  2. Step 2: Convert to fraction form
    2,579.20/3,867.88 = 1,019.12/x
  3. Step 3: Cross multiply
    2,579.20x = 3,867.88 × 1,019.12
  4. Step 4: Simplify right side
    2,579.20x = 3,941,833.87
  5. Step 5: Solve for x
    x = 3,941,833.87/2,579.20
  6. Step 6: Final answer
    x = 1,528.32

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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.