Home / 7,621.70-11,433.82-2,623.88

Finding the Fourth Proportional to 7,621.70, 11,433.82 and 2,623.88

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Solution

The fourth proportional to 7,621.70, 11,433.82 and 2,623.88 is: 3,936.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621.70 : 11,433.82 = 2,623.88 : x
  2. Step 2: Convert to fraction form
    7,621.70/11,433.82 = 2,623.88/x
  3. Step 3: Cross multiply
    7,621.70x = 11,433.82 × 2,623.88
  4. Step 4: Simplify right side
    7,621.70x = 30,000,971.62
  5. Step 5: Solve for x
    x = 30,000,971.62/7,621.70
  6. Step 6: Final answer
    x = 3,936.26

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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.