Home / 3,226.20-4,836.90-1,375.80

Finding the Fourth Proportional to 3,226.20, 4,836.90 and 1,375.80

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Solution

The fourth proportional to 3,226.20, 4,836.90 and 1,375.80 is: 2,062.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,226.20 : 4,836.90 = 1,375.80 : x
  2. Step 2: Convert to fraction form
    3,226.20/4,836.90 = 1,375.80/x
  3. Step 3: Cross multiply
    3,226.20x = 4,836.90 × 1,375.80
  4. Step 4: Simplify right side
    3,226.20x = 6,654,607.02
  5. Step 5: Solve for x
    x = 6,654,607.02/3,226.20
  6. Step 6: Final answer
    x = 2,062.68

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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.