Home / 3,107.25-4,288.08-1,691.02

Finding the Fourth Proportional to 3,107.25, 4,288.08 and 1,691.02

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Solution

The fourth proportional to 3,107.25, 4,288.08 and 1,691.02 is: 2,333.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,107.25 : 4,288.08 = 1,691.02 : x
  2. Step 2: Convert to fraction form
    3,107.25/4,288.08 = 1,691.02/x
  3. Step 3: Cross multiply
    3,107.25x = 4,288.08 × 1,691.02
  4. Step 4: Simplify right side
    3,107.25x = 7,251,229.04
  5. Step 5: Solve for x
    x = 7,251,229.04/3,107.25
  6. Step 6: Final answer
    x = 2,333.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.