Home / 3,025.60-4,171.20-1,961.44

Finding the Fourth Proportional to 3,025.60, 4,171.20 and 1,961.44

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Solution

The fourth proportional to 3,025.60, 4,171.20 and 1,961.44 is: 2,704.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,025.60 : 4,171.20 = 1,961.44 : x
  2. Step 2: Convert to fraction form
    3,025.60/4,171.20 = 1,961.44/x
  3. Step 3: Cross multiply
    3,025.60x = 4,171.20 × 1,961.44
  4. Step 4: Simplify right side
    3,025.60x = 8,181,558.53
  5. Step 5: Solve for x
    x = 8,181,558.53/3,025.60
  6. Step 6: Final answer
    x = 2,704.11

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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.