Home / 8,419.88-12,622.62-3,229.48

Finding the Fourth Proportional to 8,419.88, 12,622.62 and 3,229.48

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Solution

The fourth proportional to 8,419.88, 12,622.62 and 3,229.48 is: 4,841.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,419.88 : 12,622.62 = 3,229.48 : x
  2. Step 2: Convert to fraction form
    8,419.88/12,622.62 = 3,229.48/x
  3. Step 3: Cross multiply
    8,419.88x = 12,622.62 × 3,229.48
  4. Step 4: Simplify right side
    8,419.88x = 40,764,498.84
  5. Step 5: Solve for x
    x = 40,764,498.84/8,419.88
  6. Step 6: Final answer
    x = 4,841.46

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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.