Home / 3,922.16-5,410.26-2,678

Finding the Fourth Proportional to 3,922.16, 5,410.26 and 2,678

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Solution

The fourth proportional to 3,922.16, 5,410.26 and 2,678 is: 3,694.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,922.16 : 5,410.26 = 2,678 : x
  2. Step 2: Convert to fraction form
    3,922.16/5,410.26 = 2,678/x
  3. Step 3: Cross multiply
    3,922.16x = 5,410.26 × 2,678
  4. Step 4: Simplify right side
    3,922.16x = 14,488,676.28
  5. Step 5: Solve for x
    x = 14,488,676.28/3,922.16
  6. Step 6: Final answer
    x = 3,694.06

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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.