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Finding the Fourth Proportional to 5,604.48, 8,408.34 and 2,142

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Solution

The fourth proportional to 5,604.48, 8,408.34 and 2,142 is: 3,213.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,604.48 : 8,408.34 = 2,142 : x
  2. Step 2: Convert to fraction form
    5,604.48/8,408.34 = 2,142/x
  3. Step 3: Cross multiply
    5,604.48x = 8,408.34 × 2,142
  4. Step 4: Simplify right side
    5,604.48x = 18,010,664.28
  5. Step 5: Solve for x
    x = 18,010,664.28/5,604.48
  6. Step 6: Final answer
    x = 3,213.62

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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.