Home / 1,979.81-2,962.82-1,199.37

Finding the Fourth Proportional to 1,979.81, 2,962.82 and 1,199.37

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Solution

The fourth proportional to 1,979.81, 2,962.82 and 1,199.37 is: 1,794.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979.81 : 2,962.82 = 1,199.37 : x
  2. Step 2: Convert to fraction form
    1,979.81/2,962.82 = 1,199.37/x
  3. Step 3: Cross multiply
    1,979.81x = 2,962.82 × 1,199.37
  4. Step 4: Simplify right side
    1,979.81x = 3,553,511.43
  5. Step 5: Solve for x
    x = 3,553,511.43/1,979.81
  6. Step 6: Final answer
    x = 1,794.88

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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.