Home / 2,836.24-4,251.32-1,080.40

Finding the Fourth Proportional to 2,836.24, 4,251.32 and 1,080.40

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Solution

The fourth proportional to 2,836.24, 4,251.32 and 1,080.40 is: 1,619.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,836.24 : 4,251.32 = 1,080.40 : x
  2. Step 2: Convert to fraction form
    2,836.24/4,251.32 = 1,080.40/x
  3. Step 3: Cross multiply
    2,836.24x = 4,251.32 × 1,080.40
  4. Step 4: Simplify right side
    2,836.24x = 4,593,126.13
  5. Step 5: Solve for x
    x = 4,593,126.13/2,836.24
  6. Step 6: Final answer
    x = 1,619.44

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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.