Home / 3,390.75-5,087.34-1,540.44

Finding the Fourth Proportional to 3,390.75, 5,087.34 and 1,540.44

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Solution

The fourth proportional to 3,390.75, 5,087.34 and 1,540.44 is: 2,311.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.75 : 5,087.34 = 1,540.44 : x
  2. Step 2: Convert to fraction form
    3,390.75/5,087.34 = 1,540.44/x
  3. Step 3: Cross multiply
    3,390.75x = 5,087.34 × 1,540.44
  4. Step 4: Simplify right side
    3,390.75x = 7,836,742.03
  5. Step 5: Solve for x
    x = 7,836,742.03/3,390.75
  6. Step 6: Final answer
    x = 2,311.21

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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.