Home / 3,286.12-4,930.98-1,338.16

Finding the Fourth Proportional to 3,286.12, 4,930.98 and 1,338.16

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Solution

The fourth proportional to 3,286.12, 4,930.98 and 1,338.16 is: 2,007.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,286.12 : 4,930.98 = 1,338.16 : x
  2. Step 2: Convert to fraction form
    3,286.12/4,930.98 = 1,338.16/x
  3. Step 3: Cross multiply
    3,286.12x = 4,930.98 × 1,338.16
  4. Step 4: Simplify right side
    3,286.12x = 6,598,440.20
  5. Step 5: Solve for x
    x = 6,598,440.20/3,286.12
  6. Step 6: Final answer
    x = 2,007.97

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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.