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Finding the Fourth Proportional to 3,238.69, 4,856.31 and 1,264.99

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Solution

The fourth proportional to 3,238.69, 4,856.31 and 1,264.99 is: 1,896.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,238.69 : 4,856.31 = 1,264.99 : x
  2. Step 2: Convert to fraction form
    3,238.69/4,856.31 = 1,264.99/x
  3. Step 3: Cross multiply
    3,238.69x = 4,856.31 × 1,264.99
  4. Step 4: Simplify right side
    3,238.69x = 6,143,183.59
  5. Step 5: Solve for x
    x = 6,143,183.59/3,238.69
  6. Step 6: Final answer
    x = 1,896.81

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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.