Home / 3,409.88-5,110.98-1,679.72

Finding the Fourth Proportional to 3,409.88, 5,110.98 and 1,679.72

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Solution

The fourth proportional to 3,409.88, 5,110.98 and 1,679.72 is: 2,517.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,409.88 : 5,110.98 = 1,679.72 : x
  2. Step 2: Convert to fraction form
    3,409.88/5,110.98 = 1,679.72/x
  3. Step 3: Cross multiply
    3,409.88x = 5,110.98 × 1,679.72
  4. Step 4: Simplify right side
    3,409.88x = 8,585,015.33
  5. Step 5: Solve for x
    x = 8,585,015.33/3,409.88
  6. Step 6: Final answer
    x = 2,517.69

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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.