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Finding the Fourth Proportional to 5,813.91, 8,019.13 and 3,823.83

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Solution

The fourth proportional to 5,813.91, 8,019.13 and 3,823.83 is: 5,274.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,813.91 : 8,019.13 = 3,823.83 : x
  2. Step 2: Convert to fraction form
    5,813.91/8,019.13 = 3,823.83/x
  3. Step 3: Cross multiply
    5,813.91x = 8,019.13 × 3,823.83
  4. Step 4: Simplify right side
    5,813.91x = 30,663,789.87
  5. Step 5: Solve for x
    x = 30,663,789.87/5,813.91
  6. Step 6: Final answer
    x = 5,274.21

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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.