Home / 6,879.90-10,316.19-2,979.75

Finding the Fourth Proportional to 6,879.90, 10,316.19 and 2,979.75

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Solution

The fourth proportional to 6,879.90, 10,316.19 and 2,979.75 is: 4,468.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,879.90 : 10,316.19 = 2,979.75 : x
  2. Step 2: Convert to fraction form
    6,879.90/10,316.19 = 2,979.75/x
  3. Step 3: Cross multiply
    6,879.90x = 10,316.19 × 2,979.75
  4. Step 4: Simplify right side
    6,879.90x = 30,739,667.15
  5. Step 5: Solve for x
    x = 30,739,667.15/6,879.90
  6. Step 6: Final answer
    x = 4,468.04

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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.