Home / 2,291.62-3,162.43-1,296.91

Finding the Fourth Proportional to 2,291.62, 3,162.43 and 1,296.91

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Solution

The fourth proportional to 2,291.62, 3,162.43 and 1,296.91 is: 1,789.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,291.62 : 3,162.43 = 1,296.91 : x
  2. Step 2: Convert to fraction form
    2,291.62/3,162.43 = 1,296.91/x
  3. Step 3: Cross multiply
    2,291.62x = 3,162.43 × 1,296.91
  4. Step 4: Simplify right side
    2,291.62x = 4,101,387.09
  5. Step 5: Solve for x
    x = 4,101,387.09/2,291.62
  6. Step 6: Final answer
    x = 1,789.73

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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.