Home / 6,218.48-8,575.42-3,979.54

Finding the Fourth Proportional to 6,218.48, 8,575.42 and 3,979.54

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Solution

The fourth proportional to 6,218.48, 8,575.42 and 3,979.54 is: 5,487.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,218.48 : 8,575.42 = 3,979.54 : x
  2. Step 2: Convert to fraction form
    6,218.48/8,575.42 = 3,979.54/x
  3. Step 3: Cross multiply
    6,218.48x = 8,575.42 × 3,979.54
  4. Step 4: Simplify right side
    6,218.48x = 34,126,226.91
  5. Step 5: Solve for x
    x = 34,126,226.91/6,218.48
  6. Step 6: Final answer
    x = 5,487.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.