Home / 3,821.80-5,274.39-2,250.20

Finding the Fourth Proportional to 3,821.80, 5,274.39 and 2,250.20

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Solution

The fourth proportional to 3,821.80, 5,274.39 and 2,250.20 is: 3,105.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.80 : 5,274.39 = 2,250.20 : x
  2. Step 2: Convert to fraction form
    3,821.80/5,274.39 = 2,250.20/x
  3. Step 3: Cross multiply
    3,821.80x = 5,274.39 × 2,250.20
  4. Step 4: Simplify right side
    3,821.80x = 11,868,432.38
  5. Step 5: Solve for x
    x = 11,868,432.38/3,821.80
  6. Step 6: Final answer
    x = 3,105.46

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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.