Home / 3,589.75-5,387.07-1,281.25

Finding the Fourth Proportional to 3,589.75, 5,387.07 and 1,281.25

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Solution

The fourth proportional to 3,589.75, 5,387.07 and 1,281.25 is: 1,922.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,589.75 : 5,387.07 = 1,281.25 : x
  2. Step 2: Convert to fraction form
    3,589.75/5,387.07 = 1,281.25/x
  3. Step 3: Cross multiply
    3,589.75x = 5,387.07 × 1,281.25
  4. Step 4: Simplify right side
    3,589.75x = 6,902,183.44
  5. Step 5: Solve for x
    x = 6,902,183.44/3,589.75
  6. Step 6: Final answer
    x = 1,922.75

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1.5x scale

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.