Home / 5,416.48-8,116.21-4,186.90

Finding the Fourth Proportional to 5,416.48, 8,116.21 and 4,186.90

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Solution

The fourth proportional to 5,416.48, 8,116.21 and 4,186.90 is: 6,273.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,416.48 : 8,116.21 = 4,186.90 : x
  2. Step 2: Convert to fraction form
    5,416.48/8,116.21 = 4,186.90/x
  3. Step 3: Cross multiply
    5,416.48x = 8,116.21 × 4,186.90
  4. Step 4: Simplify right side
    5,416.48x = 33,981,759.65
  5. Step 5: Solve for x
    x = 33,981,759.65/5,416.48
  6. Step 6: Final answer
    x = 6,273.77

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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.