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Finding the Fourth Proportional to 3,375.07, 5,057.91 and 1,728.15

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Solution

The fourth proportional to 3,375.07, 5,057.91 and 1,728.15 is: 2,589.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,375.07 : 5,057.91 = 1,728.15 : x
  2. Step 2: Convert to fraction form
    3,375.07/5,057.91 = 1,728.15/x
  3. Step 3: Cross multiply
    3,375.07x = 5,057.91 × 1,728.15
  4. Step 4: Simplify right side
    3,375.07x = 8,740,827.17
  5. Step 5: Solve for x
    x = 8,740,827.17/3,375.07
  6. Step 6: Final answer
    x = 2,589.82

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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.