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Finding the Fourth Proportional to 5,481.69, 8,218.94 and 1,969.94

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Solution

The fourth proportional to 5,481.69, 8,218.94 and 1,969.94 is: 2,953.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,481.69 : 8,218.94 = 1,969.94 : x
  2. Step 2: Convert to fraction form
    5,481.69/8,218.94 = 1,969.94/x
  3. Step 3: Cross multiply
    5,481.69x = 8,218.94 × 1,969.94
  4. Step 4: Simplify right side
    5,481.69x = 16,190,767.72
  5. Step 5: Solve for x
    x = 16,190,767.72/5,481.69
  6. Step 6: Final answer
    x = 2,953.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.