Home / 5,198.79-7,793.56-1,911.11

Finding the Fourth Proportional to 5,198.79, 7,793.56 and 1,911.11

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Solution

The fourth proportional to 5,198.79, 7,793.56 and 1,911.11 is: 2,864.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,198.79 : 7,793.56 = 1,911.11 : x
  2. Step 2: Convert to fraction form
    5,198.79/7,793.56 = 1,911.11/x
  3. Step 3: Cross multiply
    5,198.79x = 7,793.56 × 1,911.11
  4. Step 4: Simplify right side
    5,198.79x = 14,894,350.45
  5. Step 5: Solve for x
    x = 14,894,350.45/5,198.79
  6. Step 6: Final answer
    x = 2,864.96

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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.