Home / 5,174.24-7,140.43-2,936.55

Finding the Fourth Proportional to 5,174.24, 7,140.43 and 2,936.55

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Solution

The fourth proportional to 5,174.24, 7,140.43 and 2,936.55 is: 4,052.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,174.24 : 7,140.43 = 2,936.55 : x
  2. Step 2: Convert to fraction form
    5,174.24/7,140.43 = 2,936.55/x
  3. Step 3: Cross multiply
    5,174.24x = 7,140.43 × 2,936.55
  4. Step 4: Simplify right side
    5,174.24x = 20,968,229.72
  5. Step 5: Solve for x
    x = 20,968,229.72/5,174.24
  6. Step 6: Final answer
    x = 4,052.43

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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.