Home / 5,872.07-8,103.83-3,879.13

Finding the Fourth Proportional to 5,872.07, 8,103.83 and 3,879.13

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Solution

The fourth proportional to 5,872.07, 8,103.83 and 3,879.13 is: 5,353.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,872.07 : 8,103.83 = 3,879.13 : x
  2. Step 2: Convert to fraction form
    5,872.07/8,103.83 = 3,879.13/x
  3. Step 3: Cross multiply
    5,872.07x = 8,103.83 × 3,879.13
  4. Step 4: Simplify right side
    5,872.07x = 31,435,770.41
  5. Step 5: Solve for x
    x = 31,435,770.41/5,872.07
  6. Step 6: Final answer
    x = 5,353.44

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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.