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Finding the Fourth Proportional to 6,343.94, 8,754.95 and 3,511.31

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Solution

The fourth proportional to 6,343.94, 8,754.95 and 3,511.31 is: 4,845.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,343.94 : 8,754.95 = 3,511.31 : x
  2. Step 2: Convert to fraction form
    6,343.94/8,754.95 = 3,511.31/x
  3. Step 3: Cross multiply
    6,343.94x = 8,754.95 × 3,511.31
  4. Step 4: Simplify right side
    6,343.94x = 30,741,325.93
  5. Step 5: Solve for x
    x = 30,741,325.93/6,343.94
  6. Step 6: Final answer
    x = 4,845.78

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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.