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Finding the Fourth Proportional to 5,458.44, 8,188.02 and 1,998.12

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Solution

The fourth proportional to 5,458.44, 8,188.02 and 1,998.12 is: 2,997.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,458.44 : 8,188.02 = 1,998.12 : x
  2. Step 2: Convert to fraction form
    5,458.44/8,188.02 = 1,998.12/x
  3. Step 3: Cross multiply
    5,458.44x = 8,188.02 × 1,998.12
  4. Step 4: Simplify right side
    5,458.44x = 16,360,646.52
  5. Step 5: Solve for x
    x = 16,360,646.52/5,458.44
  6. Step 6: Final answer
    x = 2,997.31

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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.