Home / 3,321.67-4,979.26-1,591.51

Finding the Fourth Proportional to 3,321.67, 4,979.26 and 1,591.51

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Solution

The fourth proportional to 3,321.67, 4,979.26 and 1,591.51 is: 2,385.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.67 : 4,979.26 = 1,591.51 : x
  2. Step 2: Convert to fraction form
    3,321.67/4,979.26 = 1,591.51/x
  3. Step 3: Cross multiply
    3,321.67x = 4,979.26 × 1,591.51
  4. Step 4: Simplify right side
    3,321.67x = 7,924,542.08
  5. Step 5: Solve for x
    x = 7,924,542.08/3,321.67
  6. Step 6: Final answer
    x = 2,385.71

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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.