Home / 3,749.73-5,174.82-2,156.36

Finding the Fourth Proportional to 3,749.73, 5,174.82 and 2,156.36

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Solution

The fourth proportional to 3,749.73, 5,174.82 and 2,156.36 is: 2,975.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,749.73 : 5,174.82 = 2,156.36 : x
  2. Step 2: Convert to fraction form
    3,749.73/5,174.82 = 2,156.36/x
  3. Step 3: Cross multiply
    3,749.73x = 5,174.82 × 2,156.36
  4. Step 4: Simplify right side
    3,749.73x = 11,158,748.98
  5. Step 5: Solve for x
    x = 11,158,748.98/3,749.73
  6. Step 6: Final answer
    x = 2,975.88

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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.