Home / 3,811.14-5,711.24-2,164.21

Finding the Fourth Proportional to 3,811.14, 5,711.24 and 2,164.21

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Solution

The fourth proportional to 3,811.14, 5,711.24 and 2,164.21 is: 3,243.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.14 : 5,711.24 = 2,164.21 : x
  2. Step 2: Convert to fraction form
    3,811.14/5,711.24 = 2,164.21/x
  3. Step 3: Cross multiply
    3,811.14x = 5,711.24 × 2,164.21
  4. Step 4: Simplify right side
    3,811.14x = 12,360,322.72
  5. Step 5: Solve for x
    x = 12,360,322.72/3,811.14
  6. Step 6: Final answer
    x = 3,243.21

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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.