Home / 6,879.67-10,309.78-3,419.35

Finding the Fourth Proportional to 6,879.67, 10,309.78 and 3,419.35

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Solution

The fourth proportional to 6,879.67, 10,309.78 and 3,419.35 is: 5,124.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,879.67 : 10,309.78 = 3,419.35 : x
  2. Step 2: Convert to fraction form
    6,879.67/10,309.78 = 3,419.35/x
  3. Step 3: Cross multiply
    6,879.67x = 10,309.78 × 3,419.35
  4. Step 4: Simplify right side
    6,879.67x = 35,252,746.24
  5. Step 5: Solve for x
    x = 35,252,746.24/6,879.67
  6. Step 6: Final answer
    x = 5,124.19

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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.