Home / 7,932.78-11,899.08-2,089.44

Finding the Fourth Proportional to 7,932.78, 11,899.08 and 2,089.44

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Solution

The fourth proportional to 7,932.78, 11,899.08 and 2,089.44 is: 3,134.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,932.78 : 11,899.08 = 2,089.44 : x
  2. Step 2: Convert to fraction form
    7,932.78/11,899.08 = 2,089.44/x
  3. Step 3: Cross multiply
    7,932.78x = 11,899.08 × 2,089.44
  4. Step 4: Simplify right side
    7,932.78x = 24,862,413.72
  5. Step 5: Solve for x
    x = 24,862,413.72/7,932.78
  6. Step 6: Final answer
    x = 3,134.14

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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.