Home / 5,198.56-7,173.81-2,840.73

Finding the Fourth Proportional to 5,198.56, 7,173.81 and 2,840.73

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Solution

The fourth proportional to 5,198.56, 7,173.81 and 2,840.73 is: 3,920.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,198.56 : 7,173.81 = 2,840.73 : x
  2. Step 2: Convert to fraction form
    5,198.56/7,173.81 = 2,840.73/x
  3. Step 3: Cross multiply
    5,198.56x = 7,173.81 × 2,840.73
  4. Step 4: Simplify right side
    5,198.56x = 20,378,857.28
  5. Step 5: Solve for x
    x = 20,378,857.28/5,198.56
  6. Step 6: Final answer
    x = 3,920.10

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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.