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Finding the Fourth Proportional to 3,670.22, 5,502 and 1,329.68

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Solution

The fourth proportional to 3,670.22, 5,502 and 1,329.68 is: 1,993.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,670.22 : 5,502 = 1,329.68 : x
  2. Step 2: Convert to fraction form
    3,670.22/5,502 = 1,329.68/x
  3. Step 3: Cross multiply
    3,670.22x = 5,502 × 1,329.68
  4. Step 4: Simplify right side
    3,670.22x = 7,315,899.36
  5. Step 5: Solve for x
    x = 7,315,899.36/3,670.22
  6. Step 6: Final answer
    x = 1,993.31

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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.