Home / 3,563.38-4,917.46-1,991.51

Finding the Fourth Proportional to 3,563.38, 4,917.46 and 1,991.51

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Solution

The fourth proportional to 3,563.38, 4,917.46 and 1,991.51 is: 2,748.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,563.38 : 4,917.46 = 1,991.51 : x
  2. Step 2: Convert to fraction form
    3,563.38/4,917.46 = 1,991.51/x
  3. Step 3: Cross multiply
    3,563.38x = 4,917.46 × 1,991.51
  4. Step 4: Simplify right side
    3,563.38x = 9,793,170.76
  5. Step 5: Solve for x
    x = 9,793,170.76/3,563.38
  6. Step 6: Final answer
    x = 2,748.28

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Double scale
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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.