Home / 3,431.97-5,145.80-2,260.71

Finding the Fourth Proportional to 3,431.97, 5,145.80 and 2,260.71

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Solution

The fourth proportional to 3,431.97, 5,145.80 and 2,260.71 is: 3,389.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.97 : 5,145.80 = 2,260.71 : x
  2. Step 2: Convert to fraction form
    3,431.97/5,145.80 = 2,260.71/x
  3. Step 3: Cross multiply
    3,431.97x = 5,145.80 × 2,260.71
  4. Step 4: Simplify right side
    3,431.97x = 11,633,150.21
  5. Step 5: Solve for x
    x = 11,633,150.21/3,431.97
  6. Step 6: Final answer
    x = 3,389.64

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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.