Home / 3,820.70-5,272.20-2,227.52

Finding the Fourth Proportional to 3,820.70, 5,272.20 and 2,227.52

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Solution

The fourth proportional to 3,820.70, 5,272.20 and 2,227.52 is: 3,073.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,820.70 : 5,272.20 = 2,227.52 : x
  2. Step 2: Convert to fraction form
    3,820.70/5,272.20 = 2,227.52/x
  3. Step 3: Cross multiply
    3,820.70x = 5,272.20 × 2,227.52
  4. Step 4: Simplify right side
    3,820.70x = 11,743,930.94
  5. Step 5: Solve for x
    x = 11,743,930.94/3,820.70
  6. Step 6: Final answer
    x = 3,073.76

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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.