Home / 5,436.20-8,154.30-3,249.20

Finding the Fourth Proportional to 5,436.20, 8,154.30 and 3,249.20

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Solution

The fourth proportional to 5,436.20, 8,154.30 and 3,249.20 is: 4,873.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,436.20 : 8,154.30 = 3,249.20 : x
  2. Step 2: Convert to fraction form
    5,436.20/8,154.30 = 3,249.20/x
  3. Step 3: Cross multiply
    5,436.20x = 8,154.30 × 3,249.20
  4. Step 4: Simplify right side
    5,436.20x = 26,494,951.56
  5. Step 5: Solve for x
    x = 26,494,951.56/5,436.20
  6. Step 6: Final answer
    x = 4,873.80

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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.