Home / 3,917.54-5,406.33-2,149.13

Finding the Fourth Proportional to 3,917.54, 5,406.33 and 2,149.13

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Solution

The fourth proportional to 3,917.54, 5,406.33 and 2,149.13 is: 2,965.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,917.54 : 5,406.33 = 2,149.13 : x
  2. Step 2: Convert to fraction form
    3,917.54/5,406.33 = 2,149.13/x
  3. Step 3: Cross multiply
    3,917.54x = 5,406.33 × 2,149.13
  4. Step 4: Simplify right side
    3,917.54x = 11,618,905.99
  5. Step 5: Solve for x
    x = 11,618,905.99/3,917.54
  6. Step 6: Final answer
    x = 2,965.87

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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.