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Finding the Fourth Proportional to 5,508.81, 8,265.24 and 1,998.68

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Solution

The fourth proportional to 5,508.81, 8,265.24 and 1,998.68 is: 2,998.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,508.81 : 8,265.24 = 1,998.68 : x
  2. Step 2: Convert to fraction form
    5,508.81/8,265.24 = 1,998.68/x
  3. Step 3: Cross multiply
    5,508.81x = 8,265.24 × 1,998.68
  4. Step 4: Simplify right side
    5,508.81x = 16,519,528.56
  5. Step 5: Solve for x
    x = 16,519,528.56/5,508.81
  6. Step 6: Final answer
    x = 2,998.75

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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.