Home / 2,291.86-3,162.68-1,296.94

Finding the Fourth Proportional to 2,291.86, 3,162.68 and 1,296.94

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Solution

The fourth proportional to 2,291.86, 3,162.68 and 1,296.94 is: 1,789.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,291.86 : 3,162.68 = 1,296.94 : x
  2. Step 2: Convert to fraction form
    2,291.86/3,162.68 = 1,296.94/x
  3. Step 3: Cross multiply
    2,291.86x = 3,162.68 × 1,296.94
  4. Step 4: Simplify right side
    2,291.86x = 4,101,806.20
  5. Step 5: Solve for x
    x = 4,101,806.20/2,291.86
  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.