Home / 3,388.47-5,087.87-3,221.41

Finding the Fourth Proportional to 3,388.47, 5,087.87 and 3,221.41

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Solution

The fourth proportional to 3,388.47, 5,087.87 and 3,221.41 is: 4,837.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388.47 : 5,087.87 = 3,221.41 : x
  2. Step 2: Convert to fraction form
    3,388.47/5,087.87 = 3,221.41/x
  3. Step 3: Cross multiply
    3,388.47x = 5,087.87 × 3,221.41
  4. Step 4: Simplify right side
    3,388.47x = 16,390,098.55
  5. Step 5: Solve for x
    x = 16,390,098.55/3,388.47
  6. Step 6: Final answer
    x = 4,837.02

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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.