Home / 3,391.94-5,090.51-1,518.41

Finding the Fourth Proportional to 3,391.94, 5,090.51 and 1,518.41

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Solution

The fourth proportional to 3,391.94, 5,090.51 and 1,518.41 is: 2,278.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.94 : 5,090.51 = 1,518.41 : x
  2. Step 2: Convert to fraction form
    3,391.94/5,090.51 = 1,518.41/x
  3. Step 3: Cross multiply
    3,391.94x = 5,090.51 × 1,518.41
  4. Step 4: Simplify right side
    3,391.94x = 7,729,481.29
  5. Step 5: Solve for x
    x = 7,729,481.29/3,391.94
  6. Step 6: Final answer
    x = 2,278.78

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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.