Home / 3,418.28-5,122.70-1,954.34

Finding the Fourth Proportional to 3,418.28, 5,122.70 and 1,954.34

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Solution

The fourth proportional to 3,418.28, 5,122.70 and 1,954.34 is: 2,928.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.28 : 5,122.70 = 1,954.34 : x
  2. Step 2: Convert to fraction form
    3,418.28/5,122.70 = 1,954.34/x
  3. Step 3: Cross multiply
    3,418.28x = 5,122.70 × 1,954.34
  4. Step 4: Simplify right side
    3,418.28x = 10,011,497.52
  5. Step 5: Solve for x
    x = 10,011,497.52/3,418.28
  6. Step 6: Final answer
    x = 2,928.81

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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.