Home / 4,268.78-5,891.68-3,391.28

Finding the Fourth Proportional to 4,268.78, 5,891.68 and 3,391.28

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Solution

The fourth proportional to 4,268.78, 5,891.68 and 3,391.28 is: 4,680.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,268.78 : 5,891.68 = 3,391.28 : x
  2. Step 2: Convert to fraction form
    4,268.78/5,891.68 = 3,391.28/x
  3. Step 3: Cross multiply
    4,268.78x = 5,891.68 × 3,391.28
  4. Step 4: Simplify right side
    4,268.78x = 19,980,336.55
  5. Step 5: Solve for x
    x = 19,980,336.55/4,268.78
  6. Step 6: Final answer
    x = 4,680.57

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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.