Home / 5,485.88-8,231.78-3,637.86

Finding the Fourth Proportional to 5,485.88, 8,231.78 and 3,637.86

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Solution

The fourth proportional to 5,485.88, 8,231.78 and 3,637.86 is: 5,458.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,485.88 : 8,231.78 = 3,637.86 : x
  2. Step 2: Convert to fraction form
    5,485.88/8,231.78 = 3,637.86/x
  3. Step 3: Cross multiply
    5,485.88x = 8,231.78 × 3,637.86
  4. Step 4: Simplify right side
    5,485.88x = 29,946,067.26
  5. Step 5: Solve for x
    x = 29,946,067.26/5,485.88
  6. Step 6: Final answer
    x = 5,458.76

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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.