Home / 3,811.45-5,713.27-2,578.98

Finding the Fourth Proportional to 3,811.45, 5,713.27 and 2,578.98

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Solution

The fourth proportional to 3,811.45, 5,713.27 and 2,578.98 is: 3,865.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.45 : 5,713.27 = 2,578.98 : x
  2. Step 2: Convert to fraction form
    3,811.45/5,713.27 = 2,578.98/x
  3. Step 3: Cross multiply
    3,811.45x = 5,713.27 × 2,578.98
  4. Step 4: Simplify right side
    3,811.45x = 14,734,402.62
  5. Step 5: Solve for x
    x = 14,734,402.62/3,811.45
  6. Step 6: Final answer
    x = 3,865.83

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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.