Home / 5,987.31-8,976.80-2,653.75

Finding the Fourth Proportional to 5,987.31, 8,976.80 and 2,653.75

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Solution

The fourth proportional to 5,987.31, 8,976.80 and 2,653.75 is: 3,978.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,987.31 : 8,976.80 = 2,653.75 : x
  2. Step 2: Convert to fraction form
    5,987.31/8,976.80 = 2,653.75/x
  3. Step 3: Cross multiply
    5,987.31x = 8,976.80 × 2,653.75
  4. Step 4: Simplify right side
    5,987.31x = 23,822,183.00
  5. Step 5: Solve for x
    x = 23,822,183.00/5,987.31
  6. Step 6: Final answer
    x = 3,978.78

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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.