Home / 5,129.88-7,639.46-4,797.73

Finding the Fourth Proportional to 5,129.88, 7,639.46 and 4,797.73

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Solution

The fourth proportional to 5,129.88, 7,639.46 and 4,797.73 is: 7,144.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,129.88 : 7,639.46 = 4,797.73 : x
  2. Step 2: Convert to fraction form
    5,129.88/7,639.46 = 4,797.73/x
  3. Step 3: Cross multiply
    5,129.88x = 7,639.46 × 4,797.73
  4. Step 4: Simplify right side
    5,129.88x = 36,652,096.97
  5. Step 5: Solve for x
    x = 36,652,096.97/5,129.88
  6. Step 6: Final answer
    x = 7,144.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.