Home / 3,489.24-5,225.22-2,389.80

Finding the Fourth Proportional to 3,489.24, 5,225.22 and 2,389.80

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Solution

The fourth proportional to 3,489.24, 5,225.22 and 2,389.80 is: 3,578.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489.24 : 5,225.22 = 2,389.80 : x
  2. Step 2: Convert to fraction form
    3,489.24/5,225.22 = 2,389.80/x
  3. Step 3: Cross multiply
    3,489.24x = 5,225.22 × 2,389.80
  4. Step 4: Simplify right side
    3,489.24x = 12,487,230.76
  5. Step 5: Solve for x
    x = 12,487,230.76/3,489.24
  6. Step 6: Final answer
    x = 3,578.78

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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.