Home / 2,149.68-3,225-1,175.28

Finding the Fourth Proportional to 2,149.68, 3,225 and 1,175.28

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Solution

The fourth proportional to 2,149.68, 3,225 and 1,175.28 is: 1,763.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,149.68 : 3,225 = 1,175.28 : x
  2. Step 2: Convert to fraction form
    2,149.68/3,225 = 1,175.28/x
  3. Step 3: Cross multiply
    2,149.68x = 3,225 × 1,175.28
  4. Step 4: Simplify right side
    2,149.68x = 3,790,278
  5. Step 5: Solve for x
    x = 3,790,278/2,149.68
  6. Step 6: Final answer
    x = 1,763.18

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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.