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Finding the Fourth Proportional to 3,321.88, 4,975.62 and 3,229.72

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Solution

The fourth proportional to 3,321.88, 4,975.62 and 3,229.72 is: 4,837.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.88 : 4,975.62 = 3,229.72 : x
  2. Step 2: Convert to fraction form
    3,321.88/4,975.62 = 3,229.72/x
  3. Step 3: Cross multiply
    3,321.88x = 4,975.62 × 3,229.72
  4. Step 4: Simplify right side
    3,321.88x = 16,069,859.43
  5. Step 5: Solve for x
    x = 16,069,859.43/3,321.88
  6. Step 6: Final answer
    x = 4,837.58

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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.