Home / 3,608.21-5,408.08-3,198.15

Finding the Fourth Proportional to 3,608.21, 5,408.08 and 3,198.15

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Solution

The fourth proportional to 3,608.21, 5,408.08 and 3,198.15 is: 4,793.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,608.21 : 5,408.08 = 3,198.15 : x
  2. Step 2: Convert to fraction form
    3,608.21/5,408.08 = 3,198.15/x
  3. Step 3: Cross multiply
    3,608.21x = 5,408.08 × 3,198.15
  4. Step 4: Simplify right side
    3,608.21x = 17,295,843.06
  5. Step 5: Solve for x
    x = 17,295,843.06/3,608.21
  6. Step 6: Final answer
    x = 4,793.47

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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.