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Finding the Fourth Proportional to 5,481.94, 8,220.96 and 1,585.54

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Solution

The fourth proportional to 5,481.94, 8,220.96 and 1,585.54 is: 2,377.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,481.94 : 8,220.96 = 1,585.54 : x
  2. Step 2: Convert to fraction form
    5,481.94/8,220.96 = 1,585.54/x
  3. Step 3: Cross multiply
    5,481.94x = 8,220.96 × 1,585.54
  4. Step 4: Simplify right side
    5,481.94x = 13,034,660.92
  5. Step 5: Solve for x
    x = 13,034,660.92/5,481.94
  6. Step 6: Final answer
    x = 2,377.75

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Double scale
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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.