Home / 7,977.69-11,965.47-2,134.76

Finding the Fourth Proportional to 7,977.69, 11,965.47 and 2,134.76

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Solution

The fourth proportional to 7,977.69, 11,965.47 and 2,134.76 is: 3,201.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,977.69 : 11,965.47 = 2,134.76 : x
  2. Step 2: Convert to fraction form
    7,977.69/11,965.47 = 2,134.76/x
  3. Step 3: Cross multiply
    7,977.69x = 11,965.47 × 2,134.76
  4. Step 4: Simplify right side
    7,977.69x = 25,543,350.91
  5. Step 5: Solve for x
    x = 25,543,350.91/7,977.69
  6. Step 6: Final answer
    x = 3,201.85

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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.