Home / 3,917.37-5,408.64-2,909.33

Finding the Fourth Proportional to 3,917.37, 5,408.64 and 2,909.33

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Solution

The fourth proportional to 3,917.37, 5,408.64 and 2,909.33 is: 4,016.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,917.37 : 5,408.64 = 2,909.33 : x
  2. Step 2: Convert to fraction form
    3,917.37/5,408.64 = 2,909.33/x
  3. Step 3: Cross multiply
    3,917.37x = 5,408.64 × 2,909.33
  4. Step 4: Simplify right side
    3,917.37x = 15,735,491.57
  5. Step 5: Solve for x
    x = 15,735,491.57/3,917.37
  6. Step 6: Final answer
    x = 4,016.85

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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.