Home / 2,571.29-3,861-2,487.20

Finding the Fourth Proportional to 2,571.29, 3,861 and 2,487.20

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Solution

The fourth proportional to 2,571.29, 3,861 and 2,487.20 is: 3,734.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,571.29 : 3,861 = 2,487.20 : x
  2. Step 2: Convert to fraction form
    2,571.29/3,861 = 2,487.20/x
  3. Step 3: Cross multiply
    2,571.29x = 3,861 × 2,487.20
  4. Step 4: Simplify right side
    2,571.29x = 9,603,079.20
  5. Step 5: Solve for x
    x = 9,603,079.20/2,571.29
  6. Step 6: Final answer
    x = 3,734.73

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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.