Home / 1,789.76-2,468.68-1,081.14

Finding the Fourth Proportional to 1,789.76, 2,468.68 and 1,081.14

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Solution

The fourth proportional to 1,789.76, 2,468.68 and 1,081.14 is: 1,491.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,789.76 : 2,468.68 = 1,081.14 : x
  2. Step 2: Convert to fraction form
    1,789.76/2,468.68 = 1,081.14/x
  3. Step 3: Cross multiply
    1,789.76x = 2,468.68 × 1,081.14
  4. Step 4: Simplify right side
    1,789.76x = 2,668,988.70
  5. Step 5: Solve for x
    x = 2,668,988.70/1,789.76
  6. Step 6: Final answer
    x = 1,491.26

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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.