Home / 2,834.46-3,912.03-2,120.22

Finding the Fourth Proportional to 2,834.46, 3,912.03 and 2,120.22

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Solution

The fourth proportional to 2,834.46, 3,912.03 and 2,120.22 is: 2,926.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,834.46 : 3,912.03 = 2,120.22 : x
  2. Step 2: Convert to fraction form
    2,834.46/3,912.03 = 2,120.22/x
  3. Step 3: Cross multiply
    2,834.46x = 3,912.03 × 2,120.22
  4. Step 4: Simplify right side
    2,834.46x = 8,294,364.25
  5. Step 5: Solve for x
    x = 8,294,364.25/2,834.46
  6. Step 6: Final answer
    x = 2,926.26

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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.