Home / 3,192.39-4,789.09-1,631.55

Finding the Fourth Proportional to 3,192.39, 4,789.09 and 1,631.55

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Solution

The fourth proportional to 3,192.39, 4,789.09 and 1,631.55 is: 2,447.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,192.39 : 4,789.09 = 1,631.55 : x
  2. Step 2: Convert to fraction form
    3,192.39/4,789.09 = 1,631.55/x
  3. Step 3: Cross multiply
    3,192.39x = 4,789.09 × 1,631.55
  4. Step 4: Simplify right side
    3,192.39x = 7,813,639.79
  5. Step 5: Solve for x
    x = 7,813,639.79/3,192.39
  6. Step 6: Final answer
    x = 2,447.58

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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.