Home / 5,813.84-8,717.88-2,115.92

Finding the Fourth Proportional to 5,813.84, 8,717.88 and 2,115.92

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Solution

The fourth proportional to 5,813.84, 8,717.88 and 2,115.92 is: 3,172.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,813.84 : 8,717.88 = 2,115.92 : x
  2. Step 2: Convert to fraction form
    5,813.84/8,717.88 = 2,115.92/x
  3. Step 3: Cross multiply
    5,813.84x = 8,717.88 × 2,115.92
  4. Step 4: Simplify right side
    5,813.84x = 18,446,336.65
  5. Step 5: Solve for x
    x = 18,446,336.65/5,813.84
  6. Step 6: Final answer
    x = 3,172.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.