Home / 1,979.74-2,732.09-1,183.89

Finding the Fourth Proportional to 1,979.74, 2,732.09 and 1,183.89

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Solution

The fourth proportional to 1,979.74, 2,732.09 and 1,183.89 is: 1,633.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979.74 : 2,732.09 = 1,183.89 : x
  2. Step 2: Convert to fraction form
    1,979.74/2,732.09 = 1,183.89/x
  3. Step 3: Cross multiply
    1,979.74x = 2,732.09 × 1,183.89
  4. Step 4: Simplify right side
    1,979.74x = 3,234,482.99
  5. Step 5: Solve for x
    x = 3,234,482.99/1,979.74
  6. Step 6: Final answer
    x = 1,633.79

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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.