Home / 3,421.22-5,117.24-2,101.73

Finding the Fourth Proportional to 3,421.22, 5,117.24 and 2,101.73

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Solution

The fourth proportional to 3,421.22, 5,117.24 and 2,101.73 is: 3,143.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.22 : 5,117.24 = 2,101.73 : x
  2. Step 2: Convert to fraction form
    3,421.22/5,117.24 = 2,101.73/x
  3. Step 3: Cross multiply
    3,421.22x = 5,117.24 × 2,101.73
  4. Step 4: Simplify right side
    3,421.22x = 10,755,020.73
  5. Step 5: Solve for x
    x = 10,755,020.73/3,421.22
  6. Step 6: Final answer
    x = 3,143.63

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1.5x scale

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.