Home / 3,947.22-5,918.97-1,480.26

Finding the Fourth Proportional to 3,947.22, 5,918.97 and 1,480.26

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Solution

The fourth proportional to 3,947.22, 5,918.97 and 1,480.26 is: 2,219.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,947.22 : 5,918.97 = 1,480.26 : x
  2. Step 2: Convert to fraction form
    3,947.22/5,918.97 = 1,480.26/x
  3. Step 3: Cross multiply
    3,947.22x = 5,918.97 × 1,480.26
  4. Step 4: Simplify right side
    3,947.22x = 8,761,614.53
  5. Step 5: Solve for x
    x = 8,761,614.53/3,947.22
  6. Step 6: Final answer
    x = 2,219.69

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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.