Home / 7,977.71-11,965.65-2,134.77

Finding the Fourth Proportional to 7,977.71, 11,965.65 and 2,134.77

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Solution

The fourth proportional to 7,977.71, 11,965.65 and 2,134.77 is: 3,201.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,977.71 : 11,965.65 = 2,134.77 : x
  2. Step 2: Convert to fraction form
    7,977.71/11,965.65 = 2,134.77/x
  3. Step 3: Cross multiply
    7,977.71x = 11,965.65 × 2,134.77
  4. Step 4: Simplify right side
    7,977.71x = 25,543,910.65
  5. Step 5: Solve for x
    x = 25,543,910.65/7,977.71
  6. Step 6: Final answer
    x = 3,201.91

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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.