Home / 5,272.20-7,863.21-5,086.44

Finding the Fourth Proportional to 5,272.20, 7,863.21 and 5,086.44

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Solution

The fourth proportional to 5,272.20, 7,863.21 and 5,086.44 is: 7,586.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,272.20 : 7,863.21 = 5,086.44 : x
  2. Step 2: Convert to fraction form
    5,272.20/7,863.21 = 5,086.44/x
  3. Step 3: Cross multiply
    5,272.20x = 7,863.21 × 5,086.44
  4. Step 4: Simplify right side
    5,272.20x = 39,995,745.87
  5. Step 5: Solve for x
    x = 39,995,745.87/5,272.20
  6. Step 6: Final answer
    x = 7,586.16

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.