Home / 5,738.63-7,919.39-3,221.29

Finding the Fourth Proportional to 5,738.63, 7,919.39 and 3,221.29

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Solution

The fourth proportional to 5,738.63, 7,919.39 and 3,221.29 is: 4,445.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,738.63 : 7,919.39 = 3,221.29 : x
  2. Step 2: Convert to fraction form
    5,738.63/7,919.39 = 3,221.29/x
  3. Step 3: Cross multiply
    5,738.63x = 7,919.39 × 3,221.29
  4. Step 4: Simplify right side
    5,738.63x = 25,510,651.81
  5. Step 5: Solve for x
    x = 25,510,651.81/5,738.63
  6. Step 6: Final answer
    x = 4,445.43

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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.