Home / 2,025.30-3,039.30-1,147.80

Finding the Fourth Proportional to 2,025.30, 3,039.30 and 1,147.80

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Solution

The fourth proportional to 2,025.30, 3,039.30 and 1,147.80 is: 1,722.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,025.30 : 3,039.30 = 1,147.80 : x
  2. Step 2: Convert to fraction form
    2,025.30/3,039.30 = 1,147.80/x
  3. Step 3: Cross multiply
    2,025.30x = 3,039.30 × 1,147.80
  4. Step 4: Simplify right side
    2,025.30x = 3,488,508.54
  5. Step 5: Solve for x
    x = 3,488,508.54/2,025.30
  6. Step 6: Final answer
    x = 1,722.47

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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.