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Finding the Fourth Proportional to 2,655.46, 3,983.38 and 806.73

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Solution

The fourth proportional to 2,655.46, 3,983.38 and 806.73 is: 1,210.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,655.46 : 3,983.38 = 806.73 : x
  2. Step 2: Convert to fraction form
    2,655.46/3,983.38 = 806.73/x
  3. Step 3: Cross multiply
    2,655.46x = 3,983.38 × 806.73
  4. Step 4: Simplify right side
    2,655.46x = 3,213,512.15
  5. Step 5: Solve for x
    x = 3,213,512.15/2,655.46
  6. Step 6: Final answer
    x = 1,210.15

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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.