Home / 2,866.20-4,299.75-1,222.75

Finding the Fourth Proportional to 2,866.20, 4,299.75 and 1,222.75

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Solution

The fourth proportional to 2,866.20, 4,299.75 and 1,222.75 is: 1,834.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,866.20 : 4,299.75 = 1,222.75 : x
  2. Step 2: Convert to fraction form
    2,866.20/4,299.75 = 1,222.75/x
  3. Step 3: Cross multiply
    2,866.20x = 4,299.75 × 1,222.75
  4. Step 4: Simplify right side
    2,866.20x = 5,257,513.20
  5. Step 5: Solve for x
    x = 5,257,513.20/2,866.20
  6. Step 6: Final answer
    x = 1,834.31

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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.