Home / 7,932.20-11,900.12-2,738.07

Finding the Fourth Proportional to 7,932.20, 11,900.12 and 2,738.07

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Solution

The fourth proportional to 7,932.20, 11,900.12 and 2,738.07 is: 4,107.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,932.20 : 11,900.12 = 2,738.07 : x
  2. Step 2: Convert to fraction form
    7,932.20/11,900.12 = 2,738.07/x
  3. Step 3: Cross multiply
    7,932.20x = 11,900.12 × 2,738.07
  4. Step 4: Simplify right side
    7,932.20x = 32,583,347.88
  5. Step 5: Solve for x
    x = 32,583,347.88/7,932.20
  6. Step 6: Final answer
    x = 4,107.73

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1.5x scale

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.