Home / 8,790.91-13,185.38-2,217.09

Finding the Fourth Proportional to 8,790.91, 13,185.38 and 2,217.09

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Solution

The fourth proportional to 8,790.91, 13,185.38 and 2,217.09 is: 3,325.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,790.91 : 13,185.38 = 2,217.09 : x
  2. Step 2: Convert to fraction form
    8,790.91/13,185.38 = 2,217.09/x
  3. Step 3: Cross multiply
    8,790.91x = 13,185.38 × 2,217.09
  4. Step 4: Simplify right side
    8,790.91x = 29,233,174.14
  5. Step 5: Solve for x
    x = 29,233,174.14/8,790.91
  6. Step 6: Final answer
    x = 3,325.39

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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.