Home / 5,269.91-7,272.41-2,879.87

Finding the Fourth Proportional to 5,269.91, 7,272.41 and 2,879.87

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Solution

The fourth proportional to 5,269.91, 7,272.41 and 2,879.87 is: 3,974.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,269.91 : 7,272.41 = 2,879.87 : x
  2. Step 2: Convert to fraction form
    5,269.91/7,272.41 = 2,879.87/x
  3. Step 3: Cross multiply
    5,269.91x = 7,272.41 × 2,879.87
  4. Step 4: Simplify right side
    5,269.91x = 20,943,595.39
  5. Step 5: Solve for x
    x = 20,943,595.39/5,269.91
  6. Step 6: Final answer
    x = 3,974.18

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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.