Home / 5,147.48-7,103.51-2,789.62

Finding the Fourth Proportional to 5,147.48, 7,103.51 and 2,789.62

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Solution

The fourth proportional to 5,147.48, 7,103.51 and 2,789.62 is: 3,849.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147.48 : 7,103.51 = 2,789.62 : x
  2. Step 2: Convert to fraction form
    5,147.48/7,103.51 = 2,789.62/x
  3. Step 3: Cross multiply
    5,147.48x = 7,103.51 × 2,789.62
  4. Step 4: Simplify right side
    5,147.48x = 19,816,044.10
  5. Step 5: Solve for x
    x = 19,816,044.10/5,147.48
  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.