Home / 5,147.73-7,103.84-2,789.87

Finding the Fourth Proportional to 5,147.73, 7,103.84 and 2,789.87

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Solution

The fourth proportional to 5,147.73, 7,103.84 and 2,789.87 is: 3,850.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147.73 : 7,103.84 = 2,789.87 : x
  2. Step 2: Convert to fraction form
    5,147.73/7,103.84 = 2,789.87/x
  3. Step 3: Cross multiply
    5,147.73x = 7,103.84 × 2,789.87
  4. Step 4: Simplify right side
    5,147.73x = 19,818,740.63
  5. Step 5: Solve for x
    x = 19,818,740.63/5,147.73
  6. Step 6: Final answer
    x = 3,850.00

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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.