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Finding the Fourth Proportional to 3,669.05, 5,503.53 and 1,203.95

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Solution

The fourth proportional to 3,669.05, 5,503.53 and 1,203.95 is: 1,805.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,669.05 : 5,503.53 = 1,203.95 : x
  2. Step 2: Convert to fraction form
    3,669.05/5,503.53 = 1,203.95/x
  3. Step 3: Cross multiply
    3,669.05x = 5,503.53 × 1,203.95
  4. Step 4: Simplify right side
    3,669.05x = 6,625,968.92
  5. Step 5: Solve for x
    x = 6,625,968.92/3,669.05
  6. Step 6: Final answer
    x = 1,805.91

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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.