Home / 3,188.39-4,785.49-1,629.47

Finding the Fourth Proportional to 3,188.39, 4,785.49 and 1,629.47

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Solution

The fourth proportional to 3,188.39, 4,785.49 and 1,629.47 is: 2,445.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.39 : 4,785.49 = 1,629.47 : x
  2. Step 2: Convert to fraction form
    3,188.39/4,785.49 = 1,629.47/x
  3. Step 3: Cross multiply
    3,188.39x = 4,785.49 × 1,629.47
  4. Step 4: Simplify right side
    3,188.39x = 7,797,790.31
  5. Step 5: Solve for x
    x = 7,797,790.31/3,188.39
  6. Step 6: Final answer
    x = 2,445.69

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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.