Home / 5,119.44-7,678.32-2,196.96

Finding the Fourth Proportional to 5,119.44, 7,678.32 and 2,196.96

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Solution

The fourth proportional to 5,119.44, 7,678.32 and 2,196.96 is: 3,295.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,119.44 : 7,678.32 = 2,196.96 : x
  2. Step 2: Convert to fraction form
    5,119.44/7,678.32 = 2,196.96/x
  3. Step 3: Cross multiply
    5,119.44x = 7,678.32 × 2,196.96
  4. Step 4: Simplify right side
    5,119.44x = 16,868,961.91
  5. Step 5: Solve for x
    x = 16,868,961.91/5,119.44
  6. Step 6: Final answer
    x = 3,295.08

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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.