Home / 4,789.96-7,175.34-2,189.32

Finding the Fourth Proportional to 4,789.96, 7,175.34 and 2,189.32

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Solution

The fourth proportional to 4,789.96, 7,175.34 and 2,189.32 is: 3,279.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,789.96 : 7,175.34 = 2,189.32 : x
  2. Step 2: Convert to fraction form
    4,789.96/7,175.34 = 2,189.32/x
  3. Step 3: Cross multiply
    4,789.96x = 7,175.34 × 2,189.32
  4. Step 4: Simplify right side
    4,789.96x = 15,709,115.37
  5. Step 5: Solve for x
    x = 15,709,115.37/4,789.96
  6. Step 6: Final answer
    x = 3,279.59

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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.