Home / 3,990.26-5,514.16-2,993.82

Finding the Fourth Proportional to 3,990.26, 5,514.16 and 2,993.82

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Solution

The fourth proportional to 3,990.26, 5,514.16 and 2,993.82 is: 4,137.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990.26 : 5,514.16 = 2,993.82 : x
  2. Step 2: Convert to fraction form
    3,990.26/5,514.16 = 2,993.82/x
  3. Step 3: Cross multiply
    3,990.26x = 5,514.16 × 2,993.82
  4. Step 4: Simplify right side
    3,990.26x = 16,508,402.49
  5. Step 5: Solve for x
    x = 16,508,402.49/3,990.26
  6. Step 6: Final answer
    x = 4,137.17

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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.