Home / 7,984.60-11,982.33-2,790.46

Finding the Fourth Proportional to 7,984.60, 11,982.33 and 2,790.46

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Solution

The fourth proportional to 7,984.60, 11,982.33 and 2,790.46 is: 4,187.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,984.60 : 11,982.33 = 2,790.46 : x
  2. Step 2: Convert to fraction form
    7,984.60/11,982.33 = 2,790.46/x
  3. Step 3: Cross multiply
    7,984.60x = 11,982.33 × 2,790.46
  4. Step 4: Simplify right side
    7,984.60x = 33,436,212.57
  5. Step 5: Solve for x
    x = 33,436,212.57/7,984.60
  6. Step 6: Final answer
    x = 4,187.59

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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.