Home / 3,856.08-5,323.92-2,512.92

Finding the Fourth Proportional to 3,856.08, 5,323.92 and 2,512.92

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Solution

The fourth proportional to 3,856.08, 5,323.92 and 2,512.92 is: 3,469.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,856.08 : 5,323.92 = 2,512.92 : x
  2. Step 2: Convert to fraction form
    3,856.08/5,323.92 = 2,512.92/x
  3. Step 3: Cross multiply
    3,856.08x = 5,323.92 × 2,512.92
  4. Step 4: Simplify right side
    3,856.08x = 13,378,585.05
  5. Step 5: Solve for x
    x = 13,378,585.05/3,856.08
  6. Step 6: Final answer
    x = 3,469.48

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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.