Home / 3,245.42-4,475.68-2,408.21

Finding the Fourth Proportional to 3,245.42, 4,475.68 and 2,408.21

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Solution

The fourth proportional to 3,245.42, 4,475.68 and 2,408.21 is: 3,321.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,245.42 : 4,475.68 = 2,408.21 : x
  2. Step 2: Convert to fraction form
    3,245.42/4,475.68 = 2,408.21/x
  3. Step 3: Cross multiply
    3,245.42x = 4,475.68 × 2,408.21
  4. Step 4: Simplify right side
    3,245.42x = 10,778,359.90
  5. Step 5: Solve for x
    x = 10,778,359.90/3,245.42
  6. Step 6: Final answer
    x = 3,321.10

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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.