Home / 3,238.92-4,468.91-1,912.68

Finding the Fourth Proportional to 3,238.92, 4,468.91 and 1,912.68

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Solution

The fourth proportional to 3,238.92, 4,468.91 and 1,912.68 is: 2,639.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,238.92 : 4,468.91 = 1,912.68 : x
  2. Step 2: Convert to fraction form
    3,238.92/4,468.91 = 1,912.68/x
  3. Step 3: Cross multiply
    3,238.92x = 4,468.91 × 1,912.68
  4. Step 4: Simplify right side
    3,238.92x = 8,547,585.22
  5. Step 5: Solve for x
    x = 8,547,585.22/3,238.92
  6. Step 6: Final answer
    x = 2,639.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.