Home / 4,105.12-6,160.92-1,912.72

Finding the Fourth Proportional to 4,105.12, 6,160.92 and 1,912.72

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Solution

The fourth proportional to 4,105.12, 6,160.92 and 1,912.72 is: 2,870.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,105.12 : 6,160.92 = 1,912.72 : x
  2. Step 2: Convert to fraction form
    4,105.12/6,160.92 = 1,912.72/x
  3. Step 3: Cross multiply
    4,105.12x = 6,160.92 × 1,912.72
  4. Step 4: Simplify right side
    4,105.12x = 11,784,114.90
  5. Step 5: Solve for x
    x = 11,784,114.90/4,105.12
  6. Step 6: Final answer
    x = 2,870.59

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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.