Home / 1,917.39-2,879.73-1,192.03

Finding the Fourth Proportional to 1,917.39, 2,879.73 and 1,192.03

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Solution

The fourth proportional to 1,917.39, 2,879.73 and 1,192.03 is: 1,790.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,917.39 : 2,879.73 = 1,192.03 : x
  2. Step 2: Convert to fraction form
    1,917.39/2,879.73 = 1,192.03/x
  3. Step 3: Cross multiply
    1,917.39x = 2,879.73 × 1,192.03
  4. Step 4: Simplify right side
    1,917.39x = 3,432,724.55
  5. Step 5: Solve for x
    x = 3,432,724.55/1,917.39
  6. Step 6: Final answer
    x = 1,790.31

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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.