Home / 5,180.79-7,149.24-2,942.37

Finding the Fourth Proportional to 5,180.79, 7,149.24 and 2,942.37

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Solution

The fourth proportional to 5,180.79, 7,149.24 and 2,942.37 is: 4,060.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.79 : 7,149.24 = 2,942.37 : x
  2. Step 2: Convert to fraction form
    5,180.79/7,149.24 = 2,942.37/x
  3. Step 3: Cross multiply
    5,180.79x = 7,149.24 × 2,942.37
  4. Step 4: Simplify right side
    5,180.79x = 21,035,709.30
  5. Step 5: Solve for x
    x = 21,035,709.30/5,180.79
  6. Step 6: Final answer
    x = 4,060.33

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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.