Home / 2,867.20-4,299.73-1,223.90

Finding the Fourth Proportional to 2,867.20, 4,299.73 and 1,223.90

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Solution

The fourth proportional to 2,867.20, 4,299.73 and 1,223.90 is: 1,835.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,867.20 : 4,299.73 = 1,223.90 : x
  2. Step 2: Convert to fraction form
    2,867.20/4,299.73 = 1,223.90/x
  3. Step 3: Cross multiply
    2,867.20x = 4,299.73 × 1,223.90
  4. Step 4: Simplify right side
    2,867.20x = 5,262,439.55
  5. Step 5: Solve for x
    x = 5,262,439.55/2,867.20
  6. Step 6: Final answer
    x = 1,835.39

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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.