Home / 5,211.11-7,816.70-2,133.11

Finding the Fourth Proportional to 5,211.11, 7,816.70 and 2,133.11

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Solution

The fourth proportional to 5,211.11, 7,816.70 and 2,133.11 is: 3,199.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,211.11 : 7,816.70 = 2,133.11 : x
  2. Step 2: Convert to fraction form
    5,211.11/7,816.70 = 2,133.11/x
  3. Step 3: Cross multiply
    5,211.11x = 7,816.70 × 2,133.11
  4. Step 4: Simplify right side
    5,211.11x = 16,673,880.94
  5. Step 5: Solve for x
    x = 16,673,880.94/5,211.11
  6. Step 6: Final answer
    x = 3,199.68

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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.