Home / 3,743.70-5,164.20-2,171.58

Finding the Fourth Proportional to 3,743.70, 5,164.20 and 2,171.58

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Solution

The fourth proportional to 3,743.70, 5,164.20 and 2,171.58 is: 2,995.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,743.70 : 5,164.20 = 2,171.58 : x
  2. Step 2: Convert to fraction form
    3,743.70/5,164.20 = 2,171.58/x
  3. Step 3: Cross multiply
    3,743.70x = 5,164.20 × 2,171.58
  4. Step 4: Simplify right side
    3,743.70x = 11,214,473.44
  5. Step 5: Solve for x
    x = 11,214,473.44/3,743.70
  6. Step 6: Final answer
    x = 2,995.56

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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.