Home / 5,198.21-7,174.34-2,960.79

Finding the Fourth Proportional to 5,198.21, 7,174.34 and 2,960.79

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Solution

The fourth proportional to 5,198.21, 7,174.34 and 2,960.79 is: 4,086.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,198.21 : 7,174.34 = 2,960.79 : x
  2. Step 2: Convert to fraction form
    5,198.21/7,174.34 = 2,960.79/x
  3. Step 3: Cross multiply
    5,198.21x = 7,174.34 × 2,960.79
  4. Step 4: Simplify right side
    5,198.21x = 21,241,683.52
  5. Step 5: Solve for x
    x = 21,241,683.52/5,198.21
  6. Step 6: Final answer
    x = 4,086.35

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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.