Home / 6,811.88-9,399.35-3,827.15

Finding the Fourth Proportional to 6,811.88, 9,399.35 and 3,827.15

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Solution

The fourth proportional to 6,811.88, 9,399.35 and 3,827.15 is: 5,280.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,811.88 : 9,399.35 = 3,827.15 : x
  2. Step 2: Convert to fraction form
    6,811.88/9,399.35 = 3,827.15/x
  3. Step 3: Cross multiply
    6,811.88x = 9,399.35 × 3,827.15
  4. Step 4: Simplify right side
    6,811.88x = 35,972,684.92
  5. Step 5: Solve for x
    x = 35,972,684.92/6,811.88
  6. Step 6: Final answer
    x = 5,280.87

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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.