Home / 3,811.44-5,716.98-1,861.68

Finding the Fourth Proportional to 3,811.44, 5,716.98 and 1,861.68

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Solution

The fourth proportional to 3,811.44, 5,716.98 and 1,861.68 is: 2,792.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.44 : 5,716.98 = 1,861.68 : x
  2. Step 2: Convert to fraction form
    3,811.44/5,716.98 = 1,861.68/x
  3. Step 3: Cross multiply
    3,811.44x = 5,716.98 × 1,861.68
  4. Step 4: Simplify right side
    3,811.44x = 10,643,187.33
  5. Step 5: Solve for x
    x = 10,643,187.33/3,811.44
  6. Step 6: Final answer
    x = 2,792.43

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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.