Home / 2,612.26-3,919.78-1,152.44

Finding the Fourth Proportional to 2,612.26, 3,919.78 and 1,152.44

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Solution

The fourth proportional to 2,612.26, 3,919.78 and 1,152.44 is: 1,729.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,612.26 : 3,919.78 = 1,152.44 : x
  2. Step 2: Convert to fraction form
    2,612.26/3,919.78 = 1,152.44/x
  3. Step 3: Cross multiply
    2,612.26x = 3,919.78 × 1,152.44
  4. Step 4: Simplify right side
    2,612.26x = 4,517,311.26
  5. Step 5: Solve for x
    x = 4,517,311.26/2,612.26
  6. Step 6: Final answer
    x = 1,729.27

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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.