Home / 7,279.08-10,919.70-2,661

Finding the Fourth Proportional to 7,279.08, 10,919.70 and 2,661

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Solution

The fourth proportional to 7,279.08, 10,919.70 and 2,661 is: 3,991.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,279.08 : 10,919.70 = 2,661 : x
  2. Step 2: Convert to fraction form
    7,279.08/10,919.70 = 2,661/x
  3. Step 3: Cross multiply
    7,279.08x = 10,919.70 × 2,661
  4. Step 4: Simplify right side
    7,279.08x = 29,057,321.70
  5. Step 5: Solve for x
    x = 29,057,321.70/7,279.08
  6. Step 6: Final answer
    x = 3,991.89

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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.