Home / 10,380.92-15,571.38-2,589.80

Finding the Fourth Proportional to 10,380.92, 15,571.38 and 2,589.80

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Solution

The fourth proportional to 10,380.92, 15,571.38 and 2,589.80 is: 3,884.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,380.92 : 15,571.38 = 2,589.80 : x
  2. Step 2: Convert to fraction form
    10,380.92/15,571.38 = 2,589.80/x
  3. Step 3: Cross multiply
    10,380.92x = 15,571.38 × 2,589.80
  4. Step 4: Simplify right side
    10,380.92x = 40,326,759.92
  5. Step 5: Solve for x
    x = 40,326,759.92/10,380.92
  6. Step 6: Final answer
    x = 3,884.70

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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.