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Finding the Fourth Proportional to 3,201.44, 4,418.08 and 1,804.08

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Solution

The fourth proportional to 3,201.44, 4,418.08 and 1,804.08 is: 2,489.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,201.44 : 4,418.08 = 1,804.08 : x
  2. Step 2: Convert to fraction form
    3,201.44/4,418.08 = 1,804.08/x
  3. Step 3: Cross multiply
    3,201.44x = 4,418.08 × 1,804.08
  4. Step 4: Simplify right side
    3,201.44x = 7,970,569.77
  5. Step 5: Solve for x
    x = 7,970,569.77/3,201.44
  6. Step 6: Final answer
    x = 2,489.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.