Home / 3,552.20-5,330.70-1,992.20

Finding the Fourth Proportional to 3,552.20, 5,330.70 and 1,992.20

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Solution

The fourth proportional to 3,552.20, 5,330.70 and 1,992.20 is: 2,989.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,552.20 : 5,330.70 = 1,992.20 : x
  2. Step 2: Convert to fraction form
    3,552.20/5,330.70 = 1,992.20/x
  3. Step 3: Cross multiply
    3,552.20x = 5,330.70 × 1,992.20
  4. Step 4: Simplify right side
    3,552.20x = 10,619,820.54
  5. Step 5: Solve for x
    x = 10,619,820.54/3,552.20
  6. Step 6: Final answer
    x = 2,989.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.