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Finding the Fourth Proportional to 5,820.70, 8,731.05 and 3,481.39

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Solution

The fourth proportional to 5,820.70, 8,731.05 and 3,481.39 is: 5,222.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,820.70 : 8,731.05 = 3,481.39 : x
  2. Step 2: Convert to fraction form
    5,820.70/8,731.05 = 3,481.39/x
  3. Step 3: Cross multiply
    5,820.70x = 8,731.05 × 3,481.39
  4. Step 4: Simplify right side
    5,820.70x = 30,396,190.16
  5. Step 5: Solve for x
    x = 30,396,190.16/5,820.70
  6. Step 6: Final answer
    x = 5,222.09

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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.