Home / 4,812.31-6,640.20-2,687.73

Finding the Fourth Proportional to 4,812.31, 6,640.20 and 2,687.73

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Solution

The fourth proportional to 4,812.31, 6,640.20 and 2,687.73 is: 3,708.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,812.31 : 6,640.20 = 2,687.73 : x
  2. Step 2: Convert to fraction form
    4,812.31/6,640.20 = 2,687.73/x
  3. Step 3: Cross multiply
    4,812.31x = 6,640.20 × 2,687.73
  4. Step 4: Simplify right side
    4,812.31x = 17,847,084.76
  5. Step 5: Solve for x
    x = 17,847,084.76/4,812.31
  6. Step 6: Final answer
    x = 3,708.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.