Home / 7,787.75-11,683.64-2,857.41

Finding the Fourth Proportional to 7,787.75, 11,683.64 and 2,857.41

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Solution

The fourth proportional to 7,787.75, 11,683.64 and 2,857.41 is: 4,286.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,787.75 : 11,683.64 = 2,857.41 : x
  2. Step 2: Convert to fraction form
    7,787.75/11,683.64 = 2,857.41/x
  3. Step 3: Cross multiply
    7,787.75x = 11,683.64 × 2,857.41
  4. Step 4: Simplify right side
    7,787.75x = 33,384,956.92
  5. Step 5: Solve for x
    x = 33,384,956.92/7,787.75
  6. Step 6: Final answer
    x = 4,286.86

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1.5x scale

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.