Home / 5,738.72-7,919.78-3,221.04

Finding the Fourth Proportional to 5,738.72, 7,919.78 and 3,221.04

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Solution

The fourth proportional to 5,738.72, 7,919.78 and 3,221.04 is: 4,445.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,738.72 : 7,919.78 = 3,221.04 : x
  2. Step 2: Convert to fraction form
    5,738.72/7,919.78 = 3,221.04/x
  3. Step 3: Cross multiply
    5,738.72x = 7,919.78 × 3,221.04
  4. Step 4: Simplify right side
    5,738.72x = 25,509,928.17
  5. Step 5: Solve for x
    x = 25,509,928.17/5,738.72
  6. Step 6: Final answer
    x = 4,445.23

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1.5x scale

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.