Home / 6,511.15-9,767.94-2,128.85

Finding the Fourth Proportional to 6,511.15, 9,767.94 and 2,128.85

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Solution

The fourth proportional to 6,511.15, 9,767.94 and 2,128.85 is: 3,193.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,511.15 : 9,767.94 = 2,128.85 : x
  2. Step 2: Convert to fraction form
    6,511.15/9,767.94 = 2,128.85/x
  3. Step 3: Cross multiply
    6,511.15x = 9,767.94 × 2,128.85
  4. Step 4: Simplify right side
    6,511.15x = 20,794,422.25
  5. Step 5: Solve for x
    x = 20,794,422.25/6,511.15
  6. Step 6: Final answer
    x = 3,193.66

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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.