Home / 4,268.08-6,391.14-3,431.20

Finding the Fourth Proportional to 4,268.08, 6,391.14 and 3,431.20

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Solution

The fourth proportional to 4,268.08, 6,391.14 and 3,431.20 is: 5,137.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,268.08 : 6,391.14 = 3,431.20 : x
  2. Step 2: Convert to fraction form
    4,268.08/6,391.14 = 3,431.20/x
  3. Step 3: Cross multiply
    4,268.08x = 6,391.14 × 3,431.20
  4. Step 4: Simplify right side
    4,268.08x = 21,929,279.57
  5. Step 5: Solve for x
    x = 21,929,279.57/4,268.08
  6. Step 6: Final answer
    x = 5,137.97

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1.5x scale

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.