Home / 2,291.75-3,162.58-1,296.99

Finding the Fourth Proportional to 2,291.75, 3,162.58 and 1,296.99

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Solution

The fourth proportional to 2,291.75, 3,162.58 and 1,296.99 is: 1,789.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,291.75 : 3,162.58 = 1,296.99 : x
  2. Step 2: Convert to fraction form
    2,291.75/3,162.58 = 1,296.99/x
  3. Step 3: Cross multiply
    2,291.75x = 3,162.58 × 1,296.99
  4. Step 4: Simplify right side
    2,291.75x = 4,101,834.63
  5. Step 5: Solve for x
    x = 4,101,834.63/2,291.75
  6. Step 6: Final answer
    x = 1,789.83

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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.