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Finding the Fourth Proportional to 6,168.80, 8,504.16 and 3,809.60

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Solution

The fourth proportional to 6,168.80, 8,504.16 and 3,809.60 is: 5,251.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,168.80 : 8,504.16 = 3,809.60 : x
  2. Step 2: Convert to fraction form
    6,168.80/8,504.16 = 3,809.60/x
  3. Step 3: Cross multiply
    6,168.80x = 8,504.16 × 3,809.60
  4. Step 4: Simplify right side
    6,168.80x = 32,397,447.94
  5. Step 5: Solve for x
    x = 32,397,447.94/6,168.80
  6. Step 6: Final answer
    x = 5,251.82

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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.