Home / 3,517.45-5,274.22-1,438.91

Finding the Fourth Proportional to 3,517.45, 5,274.22 and 1,438.91

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Solution

The fourth proportional to 3,517.45, 5,274.22 and 1,438.91 is: 2,157.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,517.45 : 5,274.22 = 1,438.91 : x
  2. Step 2: Convert to fraction form
    3,517.45/5,274.22 = 1,438.91/x
  3. Step 3: Cross multiply
    3,517.45x = 5,274.22 × 1,438.91
  4. Step 4: Simplify right side
    3,517.45x = 7,589,144.68
  5. Step 5: Solve for x
    x = 7,589,144.68/3,517.45
  6. Step 6: Final answer
    x = 2,157.57

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1.5x scale

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.