Home / 7,991.29-11,986.87-2,444.61

Finding the Fourth Proportional to 7,991.29, 11,986.87 and 2,444.61

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Solution

The fourth proportional to 7,991.29, 11,986.87 and 2,444.61 is: 3,666.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,991.29 : 11,986.87 = 2,444.61 : x
  2. Step 2: Convert to fraction form
    7,991.29/11,986.87 = 2,444.61/x
  3. Step 3: Cross multiply
    7,991.29x = 11,986.87 × 2,444.61
  4. Step 4: Simplify right side
    7,991.29x = 29,303,222.27
  5. Step 5: Solve for x
    x = 29,303,222.27/7,991.29
  6. Step 6: Final answer
    x = 3,666.90

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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.