Home / 3,811.88-5,711.91-2,644.15

Finding the Fourth Proportional to 3,811.88, 5,711.91 and 2,644.15

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Solution

The fourth proportional to 3,811.88, 5,711.91 and 2,644.15 is: 3,962.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.88 : 5,711.91 = 2,644.15 : x
  2. Step 2: Convert to fraction form
    3,811.88/5,711.91 = 2,644.15/x
  3. Step 3: Cross multiply
    3,811.88x = 5,711.91 × 2,644.15
  4. Step 4: Simplify right side
    3,811.88x = 15,103,122.63
  5. Step 5: Solve for x
    x = 15,103,122.63/3,811.88
  6. Step 6: Final answer
    x = 3,962.12

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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.