Home / 6,940.40-10,408.92-2,558.36

Finding the Fourth Proportional to 6,940.40, 10,408.92 and 2,558.36

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Solution

The fourth proportional to 6,940.40, 10,408.92 and 2,558.36 is: 3,836.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,940.40 : 10,408.92 = 2,558.36 : x
  2. Step 2: Convert to fraction form
    6,940.40/10,408.92 = 2,558.36/x
  3. Step 3: Cross multiply
    6,940.40x = 10,408.92 × 2,558.36
  4. Step 4: Simplify right side
    6,940.40x = 26,629,764.57
  5. Step 5: Solve for x
    x = 26,629,764.57/6,940.40
  6. Step 6: Final answer
    x = 3,836.92

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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.