Home / 2,812.11-4,219.07-1,351.37

Finding the Fourth Proportional to 2,812.11, 4,219.07 and 1,351.37

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Solution

The fourth proportional to 2,812.11, 4,219.07 and 1,351.37 is: 2,027.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.11 : 4,219.07 = 1,351.37 : x
  2. Step 2: Convert to fraction form
    2,812.11/4,219.07 = 1,351.37/x
  3. Step 3: Cross multiply
    2,812.11x = 4,219.07 × 1,351.37
  4. Step 4: Simplify right side
    2,812.11x = 5,701,496.77
  5. Step 5: Solve for x
    x = 5,701,496.77/2,812.11
  6. Step 6: Final answer
    x = 2,027.48

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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.