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Finding the Fourth Proportional to 3,850.74, 5,773.95 and 2,619.81

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Solution

The fourth proportional to 3,850.74, 5,773.95 and 2,619.81 is: 3,928.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,850.74 : 5,773.95 = 2,619.81 : x
  2. Step 2: Convert to fraction form
    3,850.74/5,773.95 = 2,619.81/x
  3. Step 3: Cross multiply
    3,850.74x = 5,773.95 × 2,619.81
  4. Step 4: Simplify right side
    3,850.74x = 15,126,651.95
  5. Step 5: Solve for x
    x = 15,126,651.95/3,850.74
  6. Step 6: Final answer
    x = 3,928.25

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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.