Home / 7,722.72-11,584.08-1,879.31

Finding the Fourth Proportional to 7,722.72, 11,584.08 and 1,879.31

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Solution

The fourth proportional to 7,722.72, 11,584.08 and 1,879.31 is: 2,818.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,722.72 : 11,584.08 = 1,879.31 : x
  2. Step 2: Convert to fraction form
    7,722.72/11,584.08 = 1,879.31/x
  3. Step 3: Cross multiply
    7,722.72x = 11,584.08 × 1,879.31
  4. Step 4: Simplify right side
    7,722.72x = 21,770,106.35
  5. Step 5: Solve for x
    x = 21,770,106.35/7,722.72
  6. Step 6: Final answer
    x = 2,818.97

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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.