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Finding the Fourth Proportional to 6,334.95, 8,739.43 and 3,815.57

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Solution

The fourth proportional to 6,334.95, 8,739.43 and 3,815.57 is: 5,263.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,334.95 : 8,739.43 = 3,815.57 : x
  2. Step 2: Convert to fraction form
    6,334.95/8,739.43 = 3,815.57/x
  3. Step 3: Cross multiply
    6,334.95x = 8,739.43 × 3,815.57
  4. Step 4: Simplify right side
    6,334.95x = 33,345,906.93
  5. Step 5: Solve for x
    x = 33,345,906.93/6,334.95
  6. Step 6: Final answer
    x = 5,263.80

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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.