Home / 3,112.08-4,691.41-2,905.83

Finding the Fourth Proportional to 3,112.08, 4,691.41 and 2,905.83

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Solution

The fourth proportional to 3,112.08, 4,691.41 and 2,905.83 is: 4,380.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.08 : 4,691.41 = 2,905.83 : x
  2. Step 2: Convert to fraction form
    3,112.08/4,691.41 = 2,905.83/x
  3. Step 3: Cross multiply
    3,112.08x = 4,691.41 × 2,905.83
  4. Step 4: Simplify right side
    3,112.08x = 13,632,439.92
  5. Step 5: Solve for x
    x = 13,632,439.92/3,112.08
  6. Step 6: Final answer
    x = 4,380.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.