Home / 7,977.88-11,966.65-2,134.49

Finding the Fourth Proportional to 7,977.88, 11,966.65 and 2,134.49

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Solution

The fourth proportional to 7,977.88, 11,966.65 and 2,134.49 is: 3,201.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,977.88 : 11,966.65 = 2,134.49 : x
  2. Step 2: Convert to fraction form
    7,977.88/11,966.65 = 2,134.49/x
  3. Step 3: Cross multiply
    7,977.88x = 11,966.65 × 2,134.49
  4. Step 4: Simplify right side
    7,977.88x = 25,542,683.07
  5. Step 5: Solve for x
    x = 25,542,683.07/7,977.88
  6. Step 6: Final answer
    x = 3,201.69

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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.