Home / 1,192.80-1,789.38-371.14

Finding the Fourth Proportional to 1,192.80, 1,789.38 and 371.14

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Solution

The fourth proportional to 1,192.80, 1,789.38 and 371.14 is: 556.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192.80 : 1,789.38 = 371.14 : x
  2. Step 2: Convert to fraction form
    1,192.80/1,789.38 = 371.14/x
  3. Step 3: Cross multiply
    1,192.80x = 1,789.38 × 371.14
  4. Step 4: Simplify right side
    1,192.80x = 664,110.49
  5. Step 5: Solve for x
    x = 664,110.49/1,192.80
  6. Step 6: Final answer
    x = 556.77

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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.