Home / 3,421.22-5,124.39-2,100.96

Finding the Fourth Proportional to 3,421.22, 5,124.39 and 2,100.96

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Solution

The fourth proportional to 3,421.22, 5,124.39 and 2,100.96 is: 3,146.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.22 : 5,124.39 = 2,100.96 : x
  2. Step 2: Convert to fraction form
    3,421.22/5,124.39 = 2,100.96/x
  3. Step 3: Cross multiply
    3,421.22x = 5,124.39 × 2,100.96
  4. Step 4: Simplify right side
    3,421.22x = 10,766,138.41
  5. Step 5: Solve for x
    x = 10,766,138.41/3,421.22
  6. Step 6: Final answer
    x = 3,146.88

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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.