Home / 3,189.39-4,786.99-1,630.47

Finding the Fourth Proportional to 3,189.39, 4,786.99 and 1,630.47

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Solution

The fourth proportional to 3,189.39, 4,786.99 and 1,630.47 is: 2,447.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.39 : 4,786.99 = 1,630.47 : x
  2. Step 2: Convert to fraction form
    3,189.39/4,786.99 = 1,630.47/x
  3. Step 3: Cross multiply
    3,189.39x = 4,786.99 × 1,630.47
  4. Step 4: Simplify right side
    3,189.39x = 7,805,043.59
  5. Step 5: Solve for x
    x = 7,805,043.59/3,189.39
  6. Step 6: Final answer
    x = 2,447.19

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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.