Home / 3,422.41-5,131.14-2,103.43

Finding the Fourth Proportional to 3,422.41, 5,131.14 and 2,103.43

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Solution

The fourth proportional to 3,422.41, 5,131.14 and 2,103.43 is: 3,153.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,422.41 : 5,131.14 = 2,103.43 : x
  2. Step 2: Convert to fraction form
    3,422.41/5,131.14 = 2,103.43/x
  3. Step 3: Cross multiply
    3,422.41x = 5,131.14 × 2,103.43
  4. Step 4: Simplify right side
    3,422.41x = 10,792,993.81
  5. Step 5: Solve for x
    x = 10,792,993.81/3,422.41
  6. Step 6: Final answer
    x = 3,153.63

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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.