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Finding the Fourth Proportional to 6,382.95, 8,809.53 and 3,729.85

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Solution

The fourth proportional to 6,382.95, 8,809.53 and 3,729.85 is: 5,147.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,382.95 : 8,809.53 = 3,729.85 : x
  2. Step 2: Convert to fraction form
    6,382.95/8,809.53 = 3,729.85/x
  3. Step 3: Cross multiply
    6,382.95x = 8,809.53 × 3,729.85
  4. Step 4: Simplify right side
    6,382.95x = 32,858,162.77
  5. Step 5: Solve for x
    x = 32,858,162.77/6,382.95
  6. Step 6: Final answer
    x = 5,147.80

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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.