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Finding the Fourth Proportional to 3,605.75, 5,408.64 and 1,008.77

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Solution

The fourth proportional to 3,605.75, 5,408.64 and 1,008.77 is: 1,513.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,605.75 : 5,408.64 = 1,008.77 : x
  2. Step 2: Convert to fraction form
    3,605.75/5,408.64 = 1,008.77/x
  3. Step 3: Cross multiply
    3,605.75x = 5,408.64 × 1,008.77
  4. Step 4: Simplify right side
    3,605.75x = 5,456,073.77
  5. Step 5: Solve for x
    x = 5,456,073.77/3,605.75
  6. Step 6: Final answer
    x = 1,513.16

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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.