Home / 5,380.42-8,072.23-2,571.35

Finding the Fourth Proportional to 5,380.42, 8,072.23 and 2,571.35

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Solution

The fourth proportional to 5,380.42, 8,072.23 and 2,571.35 is: 3,857.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,380.42 : 8,072.23 = 2,571.35 : x
  2. Step 2: Convert to fraction form
    5,380.42/8,072.23 = 2,571.35/x
  3. Step 3: Cross multiply
    5,380.42x = 8,072.23 × 2,571.35
  4. Step 4: Simplify right side
    5,380.42x = 20,756,515.75
  5. Step 5: Solve for x
    x = 20,756,515.75/5,380.42
  6. Step 6: Final answer
    x = 3,857.79

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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.