Home / 7,945.03-11,918.84-2,680.54

Finding the Fourth Proportional to 7,945.03, 11,918.84 and 2,680.54

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Solution

The fourth proportional to 7,945.03, 11,918.84 and 2,680.54 is: 4,021.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,945.03 : 11,918.84 = 2,680.54 : x
  2. Step 2: Convert to fraction form
    7,945.03/11,918.84 = 2,680.54/x
  3. Step 3: Cross multiply
    7,945.03x = 11,918.84 × 2,680.54
  4. Step 4: Simplify right side
    7,945.03x = 31,948,927.37
  5. Step 5: Solve for x
    x = 31,948,927.37/7,945.03
  6. Step 6: Final answer
    x = 4,021.25

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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.