Home / 7,979.80-11,971.64-2,433.24

Finding the Fourth Proportional to 7,979.80, 11,971.64 and 2,433.24

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Solution

The fourth proportional to 7,979.80, 11,971.64 and 2,433.24 is: 3,650.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979.80 : 11,971.64 = 2,433.24 : x
  2. Step 2: Convert to fraction form
    7,979.80/11,971.64 = 2,433.24/x
  3. Step 3: Cross multiply
    7,979.80x = 11,971.64 × 2,433.24
  4. Step 4: Simplify right side
    7,979.80x = 29,129,861.15
  5. Step 5: Solve for x
    x = 29,129,861.15/7,979.80
  6. Step 6: Final answer
    x = 3,650.45

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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.