Home / 3,107.22-4,287.92-1,709.96

Finding the Fourth Proportional to 3,107.22, 4,287.92 and 1,709.96

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Solution

The fourth proportional to 3,107.22, 4,287.92 and 1,709.96 is: 2,359.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,107.22 : 4,287.92 = 1,709.96 : x
  2. Step 2: Convert to fraction form
    3,107.22/4,287.92 = 1,709.96/x
  3. Step 3: Cross multiply
    3,107.22x = 4,287.92 × 1,709.96
  4. Step 4: Simplify right side
    3,107.22x = 7,332,171.68
  5. Step 5: Solve for x
    x = 7,332,171.68/3,107.22
  6. Step 6: Final answer
    x = 2,359.72

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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.