Home / 5,456.50-8,187.69-2,169.63

Finding the Fourth Proportional to 5,456.50, 8,187.69 and 2,169.63

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Solution

The fourth proportional to 5,456.50, 8,187.69 and 2,169.63 is: 3,255.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,456.50 : 8,187.69 = 2,169.63 : x
  2. Step 2: Convert to fraction form
    5,456.50/8,187.69 = 2,169.63/x
  3. Step 3: Cross multiply
    5,456.50x = 8,187.69 × 2,169.63
  4. Step 4: Simplify right side
    5,456.50x = 17,764,257.85
  5. Step 5: Solve for x
    x = 17,764,257.85/5,456.50
  6. Step 6: Final answer
    x = 3,255.61

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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.