Home / 3,896.22-5,375.06-2,831.44

Finding the Fourth Proportional to 3,896.22, 5,375.06 and 2,831.44

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Solution

The fourth proportional to 3,896.22, 5,375.06 and 2,831.44 is: 3,906.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,896.22 : 5,375.06 = 2,831.44 : x
  2. Step 2: Convert to fraction form
    3,896.22/5,375.06 = 2,831.44/x
  3. Step 3: Cross multiply
    3,896.22x = 5,375.06 × 2,831.44
  4. Step 4: Simplify right side
    3,896.22x = 15,219,159.89
  5. Step 5: Solve for x
    x = 15,219,159.89/3,896.22
  6. Step 6: Final answer
    x = 3,906.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.