Home / 7,900.28-11,850.62-3,739.31

Finding the Fourth Proportional to 7,900.28, 11,850.62 and 3,739.31

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Solution

The fourth proportional to 7,900.28, 11,850.62 and 3,739.31 is: 5,609.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,900.28 : 11,850.62 = 3,739.31 : x
  2. Step 2: Convert to fraction form
    7,900.28/11,850.62 = 3,739.31/x
  3. Step 3: Cross multiply
    7,900.28x = 11,850.62 × 3,739.31
  4. Step 4: Simplify right side
    7,900.28x = 44,313,063.92
  5. Step 5: Solve for x
    x = 44,313,063.92/7,900.28
  6. Step 6: Final answer
    x = 5,609.05

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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.