Home / 7,828.80-11,743.07-2,634.68

Finding the Fourth Proportional to 7,828.80, 11,743.07 and 2,634.68

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Solution

The fourth proportional to 7,828.80, 11,743.07 and 2,634.68 is: 3,951.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,828.80 : 11,743.07 = 2,634.68 : x
  2. Step 2: Convert to fraction form
    7,828.80/11,743.07 = 2,634.68/x
  3. Step 3: Cross multiply
    7,828.80x = 11,743.07 × 2,634.68
  4. Step 4: Simplify right side
    7,828.80x = 30,939,189.21
  5. Step 5: Solve for x
    x = 30,939,189.21/7,828.80
  6. Step 6: Final answer
    x = 3,951.97

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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.