Home / 2,045.13-3,067.62-658.54

Finding the Fourth Proportional to 2,045.13, 3,067.62 and 658.54

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Solution

The fourth proportional to 2,045.13, 3,067.62 and 658.54 is: 987.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,045.13 : 3,067.62 = 658.54 : x
  2. Step 2: Convert to fraction form
    2,045.13/3,067.62 = 658.54/x
  3. Step 3: Cross multiply
    2,045.13x = 3,067.62 × 658.54
  4. Step 4: Simplify right side
    2,045.13x = 2,020,150.47
  5. Step 5: Solve for x
    x = 2,020,150.47/2,045.13
  6. Step 6: Final answer
    x = 987.79

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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.