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Finding the Fourth Proportional to 3,605.62, 5,408.43 and 1,008.94

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Solution

The fourth proportional to 3,605.62, 5,408.43 and 1,008.94 is: 1,513.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,605.62 : 5,408.43 = 1,008.94 : x
  2. Step 2: Convert to fraction form
    3,605.62/5,408.43 = 1,008.94/x
  3. Step 3: Cross multiply
    3,605.62x = 5,408.43 × 1,008.94
  4. Step 4: Simplify right side
    3,605.62x = 5,456,781.36
  5. Step 5: Solve for x
    x = 5,456,781.36/3,605.62
  6. Step 6: Final answer
    x = 1,513.41

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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.