Home / 5,147.44-7,103.50-2,789.60

Finding the Fourth Proportional to 5,147.44, 7,103.50 and 2,789.60

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Solution

The fourth proportional to 5,147.44, 7,103.50 and 2,789.60 is: 3,849.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147.44 : 7,103.50 = 2,789.60 : x
  2. Step 2: Convert to fraction form
    5,147.44/7,103.50 = 2,789.60/x
  3. Step 3: Cross multiply
    5,147.44x = 7,103.50 × 2,789.60
  4. Step 4: Simplify right side
    5,147.44x = 19,815,881.11
  5. Step 5: Solve for x
    x = 19,815,881.11/5,147.44
  6. Step 6: Final answer
    x = 3,849.66

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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.