Home / 2,299.32-3,449.82-1,129.20

Finding the Fourth Proportional to 2,299.32, 3,449.82 and 1,129.20

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Solution

The fourth proportional to 2,299.32, 3,449.82 and 1,129.20 is: 1,694.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,299.32 : 3,449.82 = 1,129.20 : x
  2. Step 2: Convert to fraction form
    2,299.32/3,449.82 = 1,129.20/x
  3. Step 3: Cross multiply
    2,299.32x = 3,449.82 × 1,129.20
  4. Step 4: Simplify right side
    2,299.32x = 3,895,536.74
  5. Step 5: Solve for x
    x = 3,895,536.74/2,299.32
  6. Step 6: Final answer
    x = 1,694.21

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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.