Home / 1,191.24-1,786.88-369.52

Finding the Fourth Proportional to 1,191.24, 1,786.88 and 369.52

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Solution

The fourth proportional to 1,191.24, 1,786.88 and 369.52 is: 554.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191.24 : 1,786.88 = 369.52 : x
  2. Step 2: Convert to fraction form
    1,191.24/1,786.88 = 369.52/x
  3. Step 3: Cross multiply
    1,191.24x = 1,786.88 × 369.52
  4. Step 4: Simplify right side
    1,191.24x = 660,287.90
  5. Step 5: Solve for x
    x = 660,287.90/1,191.24
  6. Step 6: Final answer
    x = 554.29

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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.