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Finding the Fourth Proportional to 7,199.11, 10,800.11 and 3,039.11

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Solution

The fourth proportional to 7,199.11, 10,800.11 and 3,039.11 is: 4,559.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,199.11 : 10,800.11 = 3,039.11 : x
  2. Step 2: Convert to fraction form
    7,199.11/10,800.11 = 3,039.11/x
  3. Step 3: Cross multiply
    7,199.11x = 10,800.11 × 3,039.11
  4. Step 4: Simplify right side
    7,199.11x = 32,822,722.30
  5. Step 5: Solve for x
    x = 32,822,722.30/7,199.11
  6. Step 6: Final answer
    x = 4,559.28

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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.