Home / 7,977.76-11,965.71-2,134.83

Finding the Fourth Proportional to 7,977.76, 11,965.71 and 2,134.83

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Solution

The fourth proportional to 7,977.76, 11,965.71 and 2,134.83 is: 3,202.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,977.76 : 11,965.71 = 2,134.83 : x
  2. Step 2: Convert to fraction form
    7,977.76/11,965.71 = 2,134.83/x
  3. Step 3: Cross multiply
    7,977.76x = 11,965.71 × 2,134.83
  4. Step 4: Simplify right side
    7,977.76x = 25,544,756.68
  5. Step 5: Solve for x
    x = 25,544,756.68/7,977.76
  6. Step 6: Final answer
    x = 3,202.00

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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.