Home / 3,822.80-5,275.77-2,251.20

Finding the Fourth Proportional to 3,822.80, 5,275.77 and 2,251.20

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Solution

The fourth proportional to 3,822.80, 5,275.77 and 2,251.20 is: 3,106.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,822.80 : 5,275.77 = 2,251.20 : x
  2. Step 2: Convert to fraction form
    3,822.80/5,275.77 = 2,251.20/x
  3. Step 3: Cross multiply
    3,822.80x = 5,275.77 × 2,251.20
  4. Step 4: Simplify right side
    3,822.80x = 11,876,813.42
  5. Step 5: Solve for x
    x = 11,876,813.42/3,822.80
  6. Step 6: Final answer
    x = 3,106.84

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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.