Home / 3,895.72-5,374.22-2,831.83

Finding the Fourth Proportional to 3,895.72, 5,374.22 and 2,831.83

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Solution

The fourth proportional to 3,895.72, 5,374.22 and 2,831.83 is: 3,906.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,895.72 : 5,374.22 = 2,831.83 : x
  2. Step 2: Convert to fraction form
    3,895.72/5,374.22 = 2,831.83/x
  3. Step 3: Cross multiply
    3,895.72x = 5,374.22 × 2,831.83
  4. Step 4: Simplify right side
    3,895.72x = 15,218,870.34
  5. Step 5: Solve for x
    x = 15,218,870.34/3,895.72
  6. Step 6: Final answer
    x = 3,906.57

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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.