Home / 3,833.18-5,289.88-2,131.86

Finding the Fourth Proportional to 3,833.18, 5,289.88 and 2,131.86

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Solution

The fourth proportional to 3,833.18, 5,289.88 and 2,131.86 is: 2,942.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,833.18 : 5,289.88 = 2,131.86 : x
  2. Step 2: Convert to fraction form
    3,833.18/5,289.88 = 2,131.86/x
  3. Step 3: Cross multiply
    3,833.18x = 5,289.88 × 2,131.86
  4. Step 4: Simplify right side
    3,833.18x = 11,277,283.58
  5. Step 5: Solve for x
    x = 11,277,283.58/3,833.18
  6. Step 6: Final answer
    x = 2,942.02

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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.