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Finding the Fourth Proportional to 4,940.66, 6,818.01 and 2,951.21

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Solution

The fourth proportional to 4,940.66, 6,818.01 and 2,951.21 is: 4,072.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,940.66 : 6,818.01 = 2,951.21 : x
  2. Step 2: Convert to fraction form
    4,940.66/6,818.01 = 2,951.21/x
  3. Step 3: Cross multiply
    4,940.66x = 6,818.01 × 2,951.21
  4. Step 4: Simplify right side
    4,940.66x = 20,121,379.29
  5. Step 5: Solve for x
    x = 20,121,379.29/4,940.66
  6. Step 6: Final answer
    x = 4,072.61

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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.