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Finding the Fourth Proportional to 3,563.06, 4,917.02 and 1,991.16

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Solution

The fourth proportional to 3,563.06, 4,917.02 and 1,991.16 is: 2,747.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,563.06 : 4,917.02 = 1,991.16 : x
  2. Step 2: Convert to fraction form
    3,563.06/4,917.02 = 1,991.16/x
  3. Step 3: Cross multiply
    3,563.06x = 4,917.02 × 1,991.16
  4. Step 4: Simplify right side
    3,563.06x = 9,790,539.00
  5. Step 5: Solve for x
    x = 9,790,539.00/3,563.06
  6. Step 6: Final answer
    x = 2,747.79

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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.