Home / 2,749.70-3,789.45-1,962.38

Finding the Fourth Proportional to 2,749.70, 3,789.45 and 1,962.38

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Solution

The fourth proportional to 2,749.70, 3,789.45 and 1,962.38 is: 2,704.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,749.70 : 3,789.45 = 1,962.38 : x
  2. Step 2: Convert to fraction form
    2,749.70/3,789.45 = 1,962.38/x
  3. Step 3: Cross multiply
    2,749.70x = 3,789.45 × 1,962.38
  4. Step 4: Simplify right side
    2,749.70x = 7,436,350.36
  5. Step 5: Solve for x
    x = 7,436,350.36/2,749.70
  6. Step 6: Final answer
    x = 2,704.42

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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.