Home / 7,871.22-11,806.95-2,027.84

Finding the Fourth Proportional to 7,871.22, 11,806.95 and 2,027.84

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Solution

The fourth proportional to 7,871.22, 11,806.95 and 2,027.84 is: 3,041.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,871.22 : 11,806.95 = 2,027.84 : x
  2. Step 2: Convert to fraction form
    7,871.22/11,806.95 = 2,027.84/x
  3. Step 3: Cross multiply
    7,871.22x = 11,806.95 × 2,027.84
  4. Step 4: Simplify right side
    7,871.22x = 23,942,546.45
  5. Step 5: Solve for x
    x = 23,942,546.45/7,871.22
  6. Step 6: Final answer
    x = 3,041.78

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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.