Home / 3,945.74-5,919.64-1,480.59

Finding the Fourth Proportional to 3,945.74, 5,919.64 and 1,480.59

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Solution

The fourth proportional to 3,945.74, 5,919.64 and 1,480.59 is: 2,221.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.74 : 5,919.64 = 1,480.59 : x
  2. Step 2: Convert to fraction form
    3,945.74/5,919.64 = 1,480.59/x
  3. Step 3: Cross multiply
    3,945.74x = 5,919.64 × 1,480.59
  4. Step 4: Simplify right side
    3,945.74x = 8,764,556.09
  5. Step 5: Solve for x
    x = 8,764,556.09/3,945.74
  6. Step 6: Final answer
    x = 2,221.27

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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.