Home / 6,620.80-9,927.42-2,722

Finding the Fourth Proportional to 6,620.80, 9,927.42 and 2,722

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Solution

The fourth proportional to 6,620.80, 9,927.42 and 2,722 is: 4,081.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620.80 : 9,927.42 = 2,722 : x
  2. Step 2: Convert to fraction form
    6,620.80/9,927.42 = 2,722/x
  3. Step 3: Cross multiply
    6,620.80x = 9,927.42 × 2,722
  4. Step 4: Simplify right side
    6,620.80x = 27,022,437.24
  5. Step 5: Solve for x
    x = 27,022,437.24/6,620.80
  6. Step 6: Final answer
    x = 4,081.45

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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.