Home / 5,174.06-7,764.85-3,879.02

Finding the Fourth Proportional to 5,174.06, 7,764.85 and 3,879.02

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Solution

The fourth proportional to 5,174.06, 7,764.85 and 3,879.02 is: 5,821.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,174.06 : 7,764.85 = 3,879.02 : x
  2. Step 2: Convert to fraction form
    5,174.06/7,764.85 = 3,879.02/x
  3. Step 3: Cross multiply
    5,174.06x = 7,764.85 × 3,879.02
  4. Step 4: Simplify right side
    5,174.06x = 30,120,008.45
  5. Step 5: Solve for x
    x = 30,120,008.45/5,174.06
  6. Step 6: Final answer
    x = 5,821.35

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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.