Home / 5,115.15-7,673.54-2,342.79

Finding the Fourth Proportional to 5,115.15, 7,673.54 and 2,342.79

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Solution

The fourth proportional to 5,115.15, 7,673.54 and 2,342.79 is: 3,514.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.15 : 7,673.54 = 2,342.79 : x
  2. Step 2: Convert to fraction form
    5,115.15/7,673.54 = 2,342.79/x
  3. Step 3: Cross multiply
    5,115.15x = 7,673.54 × 2,342.79
  4. Step 4: Simplify right side
    5,115.15x = 17,977,481.06
  5. Step 5: Solve for x
    x = 17,977,481.06/5,115.15
  6. Step 6: Final answer
    x = 3,514.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.