Home / 2,291.49-3,162.44-1,296.61

Finding the Fourth Proportional to 2,291.49, 3,162.44 and 1,296.61

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Solution

The fourth proportional to 2,291.49, 3,162.44 and 1,296.61 is: 1,789.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,291.49 : 3,162.44 = 1,296.61 : x
  2. Step 2: Convert to fraction form
    2,291.49/3,162.44 = 1,296.61/x
  3. Step 3: Cross multiply
    2,291.49x = 3,162.44 × 1,296.61
  4. Step 4: Simplify right side
    2,291.49x = 4,100,446.66
  5. Step 5: Solve for x
    x = 4,100,446.66/2,291.49
  6. Step 6: Final answer
    x = 1,789.42

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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.