Home / 3,825.20-5,739.60-1,635.80

Finding the Fourth Proportional to 3,825.20, 5,739.60 and 1,635.80

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Solution

The fourth proportional to 3,825.20, 5,739.60 and 1,635.80 is: 2,454.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,825.20 : 5,739.60 = 1,635.80 : x
  2. Step 2: Convert to fraction form
    3,825.20/5,739.60 = 1,635.80/x
  3. Step 3: Cross multiply
    3,825.20x = 5,739.60 × 1,635.80
  4. Step 4: Simplify right side
    3,825.20x = 9,388,837.68
  5. Step 5: Solve for x
    x = 9,388,837.68/3,825.20
  6. Step 6: Final answer
    x = 2,454.47

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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.