Home / 3,288.21-4,930.46-1,338.12

Finding the Fourth Proportional to 3,288.21, 4,930.46 and 1,338.12

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Solution

The fourth proportional to 3,288.21, 4,930.46 and 1,338.12 is: 2,006.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,288.21 : 4,930.46 = 1,338.12 : x
  2. Step 2: Convert to fraction form
    3,288.21/4,930.46 = 1,338.12/x
  3. Step 3: Cross multiply
    3,288.21x = 4,930.46 × 1,338.12
  4. Step 4: Simplify right side
    3,288.21x = 6,597,540.44
  5. Step 5: Solve for x
    x = 6,597,540.44/3,288.21
  6. Step 6: Final answer
    x = 2,006.42

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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.