Home / 5,170.81-7,760.14-3,787.73

Finding the Fourth Proportional to 5,170.81, 7,760.14 and 3,787.73

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Solution

The fourth proportional to 5,170.81, 7,760.14 and 3,787.73 is: 5,684.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,170.81 : 7,760.14 = 3,787.73 : x
  2. Step 2: Convert to fraction form
    5,170.81/7,760.14 = 3,787.73/x
  3. Step 3: Cross multiply
    5,170.81x = 7,760.14 × 3,787.73
  4. Step 4: Simplify right side
    5,170.81x = 29,393,339.56
  5. Step 5: Solve for x
    x = 29,393,339.56/5,170.81
  6. Step 6: Final answer
    x = 5,684.48

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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.