Home / 3,408.53-5,102.85-1,998.68

Finding the Fourth Proportional to 3,408.53, 5,102.85 and 1,998.68

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Solution

The fourth proportional to 3,408.53, 5,102.85 and 1,998.68 is: 2,992.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,408.53 : 5,102.85 = 1,998.68 : x
  2. Step 2: Convert to fraction form
    3,408.53/5,102.85 = 1,998.68/x
  3. Step 3: Cross multiply
    3,408.53x = 5,102.85 × 1,998.68
  4. Step 4: Simplify right side
    3,408.53x = 10,198,934.98
  5. Step 5: Solve for x
    x = 10,198,934.98/3,408.53
  6. Step 6: Final answer
    x = 2,992.18

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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.