Home / 4,821.54-7,219.61-3,879.47

Finding the Fourth Proportional to 4,821.54, 7,219.61 and 3,879.47

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Solution

The fourth proportional to 4,821.54, 7,219.61 and 3,879.47 is: 5,808.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,821.54 : 7,219.61 = 3,879.47 : x
  2. Step 2: Convert to fraction form
    4,821.54/7,219.61 = 3,879.47/x
  3. Step 3: Cross multiply
    4,821.54x = 7,219.61 × 3,879.47
  4. Step 4: Simplify right side
    4,821.54x = 28,008,204.91
  5. Step 5: Solve for x
    x = 28,008,204.91/4,821.54
  6. Step 6: Final answer
    x = 5,808.97

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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.