Home / 2,834.16-3,912.23-1,889.61

Finding the Fourth Proportional to 2,834.16, 3,912.23 and 1,889.61

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Solution

The fourth proportional to 2,834.16, 3,912.23 and 1,889.61 is: 2,608.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,834.16 : 3,912.23 = 1,889.61 : x
  2. Step 2: Convert to fraction form
    2,834.16/3,912.23 = 1,889.61/x
  3. Step 3: Cross multiply
    2,834.16x = 3,912.23 × 1,889.61
  4. Step 4: Simplify right side
    2,834.16x = 7,392,592.64
  5. Step 5: Solve for x
    x = 7,392,592.64/2,834.16
  6. Step 6: Final answer
    x = 2,608.39

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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.