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Finding the Fourth Proportional to 5,469.48, 8,205.66 and 1,959.84

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Solution

The fourth proportional to 5,469.48, 8,205.66 and 1,959.84 is: 2,940.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,469.48 : 8,205.66 = 1,959.84 : x
  2. Step 2: Convert to fraction form
    5,469.48/8,205.66 = 1,959.84/x
  3. Step 3: Cross multiply
    5,469.48x = 8,205.66 × 1,959.84
  4. Step 4: Simplify right side
    5,469.48x = 16,081,780.69
  5. Step 5: Solve for x
    x = 16,081,780.69/5,469.48
  6. Step 6: Final answer
    x = 2,940.28

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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.