Home / 3,286.89-4,930.13-1,339.04

Finding the Fourth Proportional to 3,286.89, 4,930.13 and 1,339.04

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Solution

The fourth proportional to 3,286.89, 4,930.13 and 1,339.04 is: 2,008.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,286.89 : 4,930.13 = 1,339.04 : x
  2. Step 2: Convert to fraction form
    3,286.89/4,930.13 = 1,339.04/x
  3. Step 3: Cross multiply
    3,286.89x = 4,930.13 × 1,339.04
  4. Step 4: Simplify right side
    3,286.89x = 6,601,646.91
  5. Step 5: Solve for x
    x = 6,601,646.91/3,286.89
  6. Step 6: Final answer
    x = 2,008.48

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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.