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Finding the Fourth Proportional to 6,310.72, 8,708.56 and 3,794.32

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Solution

The fourth proportional to 6,310.72, 8,708.56 and 3,794.32 is: 5,236.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,310.72 : 8,708.56 = 3,794.32 : x
  2. Step 2: Convert to fraction form
    6,310.72/8,708.56 = 3,794.32/x
  3. Step 3: Cross multiply
    6,310.72x = 8,708.56 × 3,794.32
  4. Step 4: Simplify right side
    6,310.72x = 33,043,063.38
  5. Step 5: Solve for x
    x = 33,043,063.38/6,310.72
  6. Step 6: Final answer
    x = 5,236.02

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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.