Home / 3,834.35-5,289.26-2,639.19

Finding the Fourth Proportional to 3,834.35, 5,289.26 and 2,639.19

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Solution

The fourth proportional to 3,834.35, 5,289.26 and 2,639.19 is: 3,640.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,834.35 : 5,289.26 = 2,639.19 : x
  2. Step 2: Convert to fraction form
    3,834.35/5,289.26 = 2,639.19/x
  3. Step 3: Cross multiply
    3,834.35x = 5,289.26 × 2,639.19
  4. Step 4: Simplify right side
    3,834.35x = 13,959,362.10
  5. Step 5: Solve for x
    x = 13,959,362.10/3,834.35
  6. Step 6: Final answer
    x = 3,640.61

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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.