Home / 7,918.33-11,881.55-3,241.80

Finding the Fourth Proportional to 7,918.33, 11,881.55 and 3,241.80

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Solution

The fourth proportional to 7,918.33, 11,881.55 and 3,241.80 is: 4,864.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,918.33 : 11,881.55 = 3,241.80 : x
  2. Step 2: Convert to fraction form
    7,918.33/11,881.55 = 3,241.80/x
  3. Step 3: Cross multiply
    7,918.33x = 11,881.55 × 3,241.80
  4. Step 4: Simplify right side
    7,918.33x = 38,517,608.79
  5. Step 5: Solve for x
    x = 38,517,608.79/7,918.33
  6. Step 6: Final answer
    x = 4,864.36

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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.