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Finding the Fourth Proportional to 5,608.44, 8,415.90 and 2,148.12

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Solution

The fourth proportional to 5,608.44, 8,415.90 and 2,148.12 is: 3,223.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,608.44 : 8,415.90 = 2,148.12 : x
  2. Step 2: Convert to fraction form
    5,608.44/8,415.90 = 2,148.12/x
  3. Step 3: Cross multiply
    5,608.44x = 8,415.90 × 2,148.12
  4. Step 4: Simplify right side
    5,608.44x = 18,078,363.11
  5. Step 5: Solve for x
    x = 18,078,363.11/5,608.44
  6. Step 6: Final answer
    x = 3,223.42

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.