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Finding the Fourth Proportional to 1,922.36, 2,879.22 and 1,375.16

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Solution

The fourth proportional to 1,922.36, 2,879.22 and 1,375.16 is: 2,059.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,922.36 : 2,879.22 = 1,375.16 : x
  2. Step 2: Convert to fraction form
    1,922.36/2,879.22 = 1,375.16/x
  3. Step 3: Cross multiply
    1,922.36x = 2,879.22 × 1,375.16
  4. Step 4: Simplify right side
    1,922.36x = 3,959,388.18
  5. Step 5: Solve for x
    x = 3,959,388.18/1,922.36
  6. Step 6: Final answer
    x = 2,059.65

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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.