Home / 1,224.12-1,836.17-299.69

Finding the Fourth Proportional to 1,224.12, 1,836.17 and 299.69

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Solution

The fourth proportional to 1,224.12, 1,836.17 and 299.69 is: 449.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224.12 : 1,836.17 = 299.69 : x
  2. Step 2: Convert to fraction form
    1,224.12/1,836.17 = 299.69/x
  3. Step 3: Cross multiply
    1,224.12x = 1,836.17 × 299.69
  4. Step 4: Simplify right side
    1,224.12x = 550,279.12
  5. Step 5: Solve for x
    x = 550,279.12/1,224.12
  6. Step 6: Final answer
    x = 449.53

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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.