Home / 7,979.38-11,971.67-2,433.78

Finding the Fourth Proportional to 7,979.38, 11,971.67 and 2,433.78

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Solution

The fourth proportional to 7,979.38, 11,971.67 and 2,433.78 is: 3,651.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979.38 : 11,971.67 = 2,433.78 : x
  2. Step 2: Convert to fraction form
    7,979.38/11,971.67 = 2,433.78/x
  3. Step 3: Cross multiply
    7,979.38x = 11,971.67 × 2,433.78
  4. Step 4: Simplify right side
    7,979.38x = 29,136,398.84
  5. Step 5: Solve for x
    x = 29,136,398.84/7,979.38
  6. Step 6: Final answer
    x = 3,651.46

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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.