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Finding the Fourth Proportional to 3,668.34, 5,503.78 and 1,203.60

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Solution

The fourth proportional to 3,668.34, 5,503.78 and 1,203.60 is: 1,805.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,668.34 : 5,503.78 = 1,203.60 : x
  2. Step 2: Convert to fraction form
    3,668.34/5,503.78 = 1,203.60/x
  3. Step 3: Cross multiply
    3,668.34x = 5,503.78 × 1,203.60
  4. Step 4: Simplify right side
    3,668.34x = 6,624,349.61
  5. Step 5: Solve for x
    x = 6,624,349.61/3,668.34
  6. Step 6: Final answer
    x = 1,805.82

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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.