Home / 2,812.36-4,219.44-1,351.62

Finding the Fourth Proportional to 2,812.36, 4,219.44 and 1,351.62

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Solution

The fourth proportional to 2,812.36, 4,219.44 and 1,351.62 is: 2,027.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.36 : 4,219.44 = 1,351.62 : x
  2. Step 2: Convert to fraction form
    2,812.36/4,219.44 = 1,351.62/x
  3. Step 3: Cross multiply
    2,812.36x = 4,219.44 × 1,351.62
  4. Step 4: Simplify right side
    2,812.36x = 5,703,079.49
  5. Step 5: Solve for x
    x = 5,703,079.49/2,812.36
  6. Step 6: Final answer
    x = 2,027.86

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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.