Home / 3,216.24-4,821.44-1,268

Finding the Fourth Proportional to 3,216.24, 4,821.44 and 1,268

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Solution

The fourth proportional to 3,216.24, 4,821.44 and 1,268 is: 1,900.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,216.24 : 4,821.44 = 1,268 : x
  2. Step 2: Convert to fraction form
    3,216.24/4,821.44 = 1,268/x
  3. Step 3: Cross multiply
    3,216.24x = 4,821.44 × 1,268
  4. Step 4: Simplify right side
    3,216.24x = 6,113,585.92
  5. Step 5: Solve for x
    x = 6,113,585.92/3,216.24
  6. Step 6: Final answer
    x = 1,900.85

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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.