Home / 3,540.42-4,885.78-1,968.52

Finding the Fourth Proportional to 3,540.42, 4,885.78 and 1,968.52

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Solution

The fourth proportional to 3,540.42, 4,885.78 and 1,968.52 is: 2,716.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,540.42 : 4,885.78 = 1,968.52 : x
  2. Step 2: Convert to fraction form
    3,540.42/4,885.78 = 1,968.52/x
  3. Step 3: Cross multiply
    3,540.42x = 4,885.78 × 1,968.52
  4. Step 4: Simplify right side
    3,540.42x = 9,617,755.65
  5. Step 5: Solve for x
    x = 9,617,755.65/3,540.42
  6. Step 6: Final answer
    x = 2,716.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.