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Finding the Fourth Proportional to 3,668.52, 5,029.62 and 3,603

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Solution

The fourth proportional to 3,668.52, 5,029.62 and 3,603 is: 4,939.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,668.52 : 5,029.62 = 3,603 : x
  2. Step 2: Convert to fraction form
    3,668.52/5,029.62 = 3,603/x
  3. Step 3: Cross multiply
    3,668.52x = 5,029.62 × 3,603
  4. Step 4: Simplify right side
    3,668.52x = 18,121,720.86
  5. Step 5: Solve for x
    x = 18,121,720.86/3,668.52
  6. Step 6: Final answer
    x = 4,939.79

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.