Home / 3,891.09-5,371.91-2,568.64

Finding the Fourth Proportional to 3,891.09, 5,371.91 and 2,568.64

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Solution

The fourth proportional to 3,891.09, 5,371.91 and 2,568.64 is: 3,546.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,891.09 : 5,371.91 = 2,568.64 : x
  2. Step 2: Convert to fraction form
    3,891.09/5,371.91 = 2,568.64/x
  3. Step 3: Cross multiply
    3,891.09x = 5,371.91 × 2,568.64
  4. Step 4: Simplify right side
    3,891.09x = 13,798,492.67
  5. Step 5: Solve for x
    x = 13,798,492.67/3,891.09
  6. Step 6: Final answer
    x = 3,546.18

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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.