Home / 5,198.73-7,174.28-2,840.93

Finding the Fourth Proportional to 5,198.73, 7,174.28 and 2,840.93

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Solution

The fourth proportional to 5,198.73, 7,174.28 and 2,840.93 is: 3,920.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,198.73 : 7,174.28 = 2,840.93 : x
  2. Step 2: Convert to fraction form
    5,198.73/7,174.28 = 2,840.93/x
  3. Step 3: Cross multiply
    5,198.73x = 7,174.28 × 2,840.93
  4. Step 4: Simplify right side
    5,198.73x = 20,381,627.28
  5. Step 5: Solve for x
    x = 20,381,627.28/5,198.73
  6. Step 6: Final answer
    x = 3,920.50

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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.