Home / 1,922.62-2,879.61-1,190.11

Finding the Fourth Proportional to 1,922.62, 2,879.61 and 1,190.11

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Solution

The fourth proportional to 1,922.62, 2,879.61 and 1,190.11 is: 1,782.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,922.62 : 2,879.61 = 1,190.11 : x
  2. Step 2: Convert to fraction form
    1,922.62/2,879.61 = 1,190.11/x
  3. Step 3: Cross multiply
    1,922.62x = 2,879.61 × 1,190.11
  4. Step 4: Simplify right side
    1,922.62x = 3,427,052.66
  5. Step 5: Solve for x
    x = 3,427,052.66/1,922.62
  6. Step 6: Final answer
    x = 1,782.49

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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.