Home / 7,787.59-11,682.92-2,857.27

Finding the Fourth Proportional to 7,787.59, 11,682.92 and 2,857.27

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Solution

The fourth proportional to 7,787.59, 11,682.92 and 2,857.27 is: 4,286.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,787.59 : 11,682.92 = 2,857.27 : x
  2. Step 2: Convert to fraction form
    7,787.59/11,682.92 = 2,857.27/x
  3. Step 3: Cross multiply
    7,787.59x = 11,682.92 × 2,857.27
  4. Step 4: Simplify right side
    7,787.59x = 33,381,256.83
  5. Step 5: Solve for x
    x = 33,381,256.83/7,787.59
  6. Step 6: Final answer
    x = 4,286.47

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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.