Home / 2,251.45-3,104.18-1,720.99

Finding the Fourth Proportional to 2,251.45, 3,104.18 and 1,720.99

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Solution

The fourth proportional to 2,251.45, 3,104.18 and 1,720.99 is: 2,372.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,251.45 : 3,104.18 = 1,720.99 : x
  2. Step 2: Convert to fraction form
    2,251.45/3,104.18 = 1,720.99/x
  3. Step 3: Cross multiply
    2,251.45x = 3,104.18 × 1,720.99
  4. Step 4: Simplify right side
    2,251.45x = 5,342,247.22
  5. Step 5: Solve for x
    x = 5,342,247.22/2,251.45
  6. Step 6: Final answer
    x = 2,372.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.