Home / 5,418.40-8,125.20-2,497.60

Finding the Fourth Proportional to 5,418.40, 8,125.20 and 2,497.60

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Solution

The fourth proportional to 5,418.40, 8,125.20 and 2,497.60 is: 3,745.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.40 : 8,125.20 = 2,497.60 : x
  2. Step 2: Convert to fraction form
    5,418.40/8,125.20 = 2,497.60/x
  3. Step 3: Cross multiply
    5,418.40x = 8,125.20 × 2,497.60
  4. Step 4: Simplify right side
    5,418.40x = 20,293,499.52
  5. Step 5: Solve for x
    x = 20,293,499.52/5,418.40
  6. Step 6: Final answer
    x = 3,745.29

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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.