Home / 7,379.52-11,071.25-3,219.86

Finding the Fourth Proportional to 7,379.52, 11,071.25 and 3,219.86

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Solution

The fourth proportional to 7,379.52, 11,071.25 and 3,219.86 is: 4,830.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,379.52 : 11,071.25 = 3,219.86 : x
  2. Step 2: Convert to fraction form
    7,379.52/11,071.25 = 3,219.86/x
  3. Step 3: Cross multiply
    7,379.52x = 11,071.25 × 3,219.86
  4. Step 4: Simplify right side
    7,379.52x = 35,647,875.03
  5. Step 5: Solve for x
    x = 35,647,875.03/7,379.52
  6. Step 6: Final answer
    x = 4,830.65

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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.