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Finding the Fourth Proportional to 2,039.83, 3,057.64 and 806.74

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Solution

The fourth proportional to 2,039.83, 3,057.64 and 806.74 is: 1,209.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,039.83 : 3,057.64 = 806.74 : x
  2. Step 2: Convert to fraction form
    2,039.83/3,057.64 = 806.74/x
  3. Step 3: Cross multiply
    2,039.83x = 3,057.64 × 806.74
  4. Step 4: Simplify right side
    2,039.83x = 2,466,720.49
  5. Step 5: Solve for x
    x = 2,466,720.49/2,039.83
  6. Step 6: Final answer
    x = 1,209.28

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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.