Home / 2,611.75-3,912.41-1,571.18

Finding the Fourth Proportional to 2,611.75, 3,912.41 and 1,571.18

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Solution

The fourth proportional to 2,611.75, 3,912.41 and 1,571.18 is: 2,353.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,611.75 : 3,912.41 = 1,571.18 : x
  2. Step 2: Convert to fraction form
    2,611.75/3,912.41 = 1,571.18/x
  3. Step 3: Cross multiply
    2,611.75x = 3,912.41 × 1,571.18
  4. Step 4: Simplify right side
    2,611.75x = 6,147,110.12
  5. Step 5: Solve for x
    x = 6,147,110.12/2,611.75
  6. Step 6: Final answer
    x = 2,353.63

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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.