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Finding the Fourth Proportional to 3,447.55, 5,171.34 and 850.48

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Solution

The fourth proportional to 3,447.55, 5,171.34 and 850.48 is: 1,275.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,447.55 : 5,171.34 = 850.48 : x
  2. Step 2: Convert to fraction form
    3,447.55/5,171.34 = 850.48/x
  3. Step 3: Cross multiply
    3,447.55x = 5,171.34 × 850.48
  4. Step 4: Simplify right side
    3,447.55x = 4,398,121.24
  5. Step 5: Solve for x
    x = 4,398,121.24/3,447.55
  6. Step 6: Final answer
    x = 1,275.72

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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.