Home / 3,418.28-5,122.20-1,775.36

Finding the Fourth Proportional to 3,418.28, 5,122.20 and 1,775.36

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Solution

The fourth proportional to 3,418.28, 5,122.20 and 1,775.36 is: 2,660.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.28 : 5,122.20 = 1,775.36 : x
  2. Step 2: Convert to fraction form
    3,418.28/5,122.20 = 1,775.36/x
  3. Step 3: Cross multiply
    3,418.28x = 5,122.20 × 1,775.36
  4. Step 4: Simplify right side
    3,418.28x = 9,093,748.99
  5. Step 5: Solve for x
    x = 9,093,748.99/3,418.28
  6. Step 6: Final answer
    x = 2,660.33

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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.