Home / 2,856.36-4,283.22-1,212.03

Finding the Fourth Proportional to 2,856.36, 4,283.22 and 1,212.03

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Solution

The fourth proportional to 2,856.36, 4,283.22 and 1,212.03 is: 1,817.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,856.36 : 4,283.22 = 1,212.03 : x
  2. Step 2: Convert to fraction form
    2,856.36/4,283.22 = 1,212.03/x
  3. Step 3: Cross multiply
    2,856.36x = 4,283.22 × 1,212.03
  4. Step 4: Simplify right side
    2,856.36x = 5,191,391.14
  5. Step 5: Solve for x
    x = 5,191,391.14/2,856.36
  6. Step 6: Final answer
    x = 1,817.48

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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.