Home / 2,813.27-3,877.77-2,252.85

Finding the Fourth Proportional to 2,813.27, 3,877.77 and 2,252.85

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Solution

The fourth proportional to 2,813.27, 3,877.77 and 2,252.85 is: 3,105.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,813.27 : 3,877.77 = 2,252.85 : x
  2. Step 2: Convert to fraction form
    2,813.27/3,877.77 = 2,252.85/x
  3. Step 3: Cross multiply
    2,813.27x = 3,877.77 × 2,252.85
  4. Step 4: Simplify right side
    2,813.27x = 8,736,028.05
  5. Step 5: Solve for x
    x = 8,736,028.05/2,813.27
  6. Step 6: Final answer
    x = 3,105.30

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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.