Home / 3,552.12-5,331.83-3,420.90

Finding the Fourth Proportional to 3,552.12, 5,331.83 and 3,420.90

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Solution

The fourth proportional to 3,552.12, 5,331.83 and 3,420.90 is: 5,134.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,552.12 : 5,331.83 = 3,420.90 : x
  2. Step 2: Convert to fraction form
    3,552.12/5,331.83 = 3,420.90/x
  3. Step 3: Cross multiply
    3,552.12x = 5,331.83 × 3,420.90
  4. Step 4: Simplify right side
    3,552.12x = 18,239,640.14
  5. Step 5: Solve for x
    x = 18,239,640.14/3,552.12
  6. Step 6: Final answer
    x = 5,134.86

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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.