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Finding the Fourth Proportional to 5,399.80, 8,084.22 and 4,738.12

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Solution

The fourth proportional to 5,399.80, 8,084.22 and 4,738.12 is: 7,093.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,399.80 : 8,084.22 = 4,738.12 : x
  2. Step 2: Convert to fraction form
    5,399.80/8,084.22 = 4,738.12/x
  3. Step 3: Cross multiply
    5,399.80x = 8,084.22 × 4,738.12
  4. Step 4: Simplify right side
    5,399.80x = 38,304,004.47
  5. Step 5: Solve for x
    x = 38,304,004.47/5,399.80
  6. Step 6: Final answer
    x = 7,093.60

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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.