Home / 7,977.85-11,965.84-2,134.91

Finding the Fourth Proportional to 7,977.85, 11,965.84 and 2,134.91

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Solution

The fourth proportional to 7,977.85, 11,965.84 and 2,134.91 is: 3,202.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,977.85 : 11,965.84 = 2,134.91 : x
  2. Step 2: Convert to fraction form
    7,977.85/11,965.84 = 2,134.91/x
  3. Step 3: Cross multiply
    7,977.85x = 11,965.84 × 2,134.91
  4. Step 4: Simplify right side
    7,977.85x = 25,545,991.47
  5. Step 5: Solve for x
    x = 25,545,991.47/7,977.85
  6. Step 6: Final answer
    x = 3,202.11

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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.