Home / 2,286.24-3,429.12-824.64

Finding the Fourth Proportional to 2,286.24, 3,429.12 and 824.64

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Solution

The fourth proportional to 2,286.24, 3,429.12 and 824.64 is: 1,236.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,286.24 : 3,429.12 = 824.64 : x
  2. Step 2: Convert to fraction form
    2,286.24/3,429.12 = 824.64/x
  3. Step 3: Cross multiply
    2,286.24x = 3,429.12 × 824.64
  4. Step 4: Simplify right side
    2,286.24x = 2,827,789.52
  5. Step 5: Solve for x
    x = 2,827,789.52/2,286.24
  6. Step 6: Final answer
    x = 1,236.87

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1.5x scale

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.