Home / 3,945.26-5,919.70-1,480.28

Finding the Fourth Proportional to 3,945.26, 5,919.70 and 1,480.28

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Solution

The fourth proportional to 3,945.26, 5,919.70 and 1,480.28 is: 2,221.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.26 : 5,919.70 = 1,480.28 : x
  2. Step 2: Convert to fraction form
    3,945.26/5,919.70 = 1,480.28/x
  3. Step 3: Cross multiply
    3,945.26x = 5,919.70 × 1,480.28
  4. Step 4: Simplify right side
    3,945.26x = 8,762,813.52
  5. Step 5: Solve for x
    x = 8,762,813.52/3,945.26
  6. Step 6: Final answer
    x = 2,221.10

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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.