Home / 1,786.82-2,678.60-1,324.04

Finding the Fourth Proportional to 1,786.82, 2,678.60 and 1,324.04

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Solution

The fourth proportional to 1,786.82, 2,678.60 and 1,324.04 is: 1,984.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,786.82 : 2,678.60 = 1,324.04 : x
  2. Step 2: Convert to fraction form
    1,786.82/2,678.60 = 1,324.04/x
  3. Step 3: Cross multiply
    1,786.82x = 2,678.60 × 1,324.04
  4. Step 4: Simplify right side
    1,786.82x = 3,546,573.54
  5. Step 5: Solve for x
    x = 3,546,573.54/1,786.82
  6. Step 6: Final answer
    x = 1,984.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.