Home / 2,813.32-3,876.90-2,025.88

Finding the Fourth Proportional to 2,813.32, 3,876.90 and 2,025.88

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Solution

The fourth proportional to 2,813.32, 3,876.90 and 2,025.88 is: 2,791.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,813.32 : 3,876.90 = 2,025.88 : x
  2. Step 2: Convert to fraction form
    2,813.32/3,876.90 = 2,025.88/x
  3. Step 3: Cross multiply
    2,813.32x = 3,876.90 × 2,025.88
  4. Step 4: Simplify right side
    2,813.32x = 7,854,134.17
  5. Step 5: Solve for x
    x = 7,854,134.17/2,813.32
  6. Step 6: Final answer
    x = 2,791.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.