Home / 2,576.20-3,857.28-1,879.24

Finding the Fourth Proportional to 2,576.20, 3,857.28 and 1,879.24

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Solution

The fourth proportional to 2,576.20, 3,857.28 and 1,879.24 is: 2,813.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,576.20 : 3,857.28 = 1,879.24 : x
  2. Step 2: Convert to fraction form
    2,576.20/3,857.28 = 1,879.24/x
  3. Step 3: Cross multiply
    2,576.20x = 3,857.28 × 1,879.24
  4. Step 4: Simplify right side
    2,576.20x = 7,248,754.87
  5. Step 5: Solve for x
    x = 7,248,754.87/2,576.20
  6. Step 6: Final answer
    x = 2,813.74

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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.