Home / 7,940.40-11,910.06-3,009.66

Finding the Fourth Proportional to 7,940.40, 11,910.06 and 3,009.66

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Solution

The fourth proportional to 7,940.40, 11,910.06 and 3,009.66 is: 4,514.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,940.40 : 11,910.06 = 3,009.66 : x
  2. Step 2: Convert to fraction form
    7,940.40/11,910.06 = 3,009.66/x
  3. Step 3: Cross multiply
    7,940.40x = 11,910.06 × 3,009.66
  4. Step 4: Simplify right side
    7,940.40x = 35,845,231.18
  5. Step 5: Solve for x
    x = 35,845,231.18/7,940.40
  6. Step 6: Final answer
    x = 4,514.29

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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.