Home / 3,990.24-5,986.37-1,524.80

Finding the Fourth Proportional to 3,990.24, 5,986.37 and 1,524.80

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Solution

The fourth proportional to 3,990.24, 5,986.37 and 1,524.80 is: 2,287.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990.24 : 5,986.37 = 1,524.80 : x
  2. Step 2: Convert to fraction form
    3,990.24/5,986.37 = 1,524.80/x
  3. Step 3: Cross multiply
    3,990.24x = 5,986.37 × 1,524.80
  4. Step 4: Simplify right side
    3,990.24x = 9,128,016.98
  5. Step 5: Solve for x
    x = 9,128,016.98/3,990.24
  6. Step 6: Final answer
    x = 2,287.59

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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.