Home / 3,921.26-5,879.37-1,838.48

Finding the Fourth Proportional to 3,921.26, 5,879.37 and 1,838.48

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Solution

The fourth proportional to 3,921.26, 5,879.37 and 1,838.48 is: 2,756.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.26 : 5,879.37 = 1,838.48 : x
  2. Step 2: Convert to fraction form
    3,921.26/5,879.37 = 1,838.48/x
  3. Step 3: Cross multiply
    3,921.26x = 5,879.37 × 1,838.48
  4. Step 4: Simplify right side
    3,921.26x = 10,809,104.16
  5. Step 5: Solve for x
    x = 10,809,104.16/3,921.26
  6. Step 6: Final answer
    x = 2,756.54

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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.