Home / 5,318.91-7,976.30-2,199.42

Finding the Fourth Proportional to 5,318.91, 7,976.30 and 2,199.42

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Solution

The fourth proportional to 5,318.91, 7,976.30 and 2,199.42 is: 3,298.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,318.91 : 7,976.30 = 2,199.42 : x
  2. Step 2: Convert to fraction form
    5,318.91/7,976.30 = 2,199.42/x
  3. Step 3: Cross multiply
    5,318.91x = 7,976.30 × 2,199.42
  4. Step 4: Simplify right side
    5,318.91x = 17,543,222.75
  5. Step 5: Solve for x
    x = 17,543,222.75/5,318.91
  6. Step 6: Final answer
    x = 3,298.27

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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.