Home / 2,257.21-3,385.76-1,219.24

Finding the Fourth Proportional to 2,257.21, 3,385.76 and 1,219.24

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Solution

The fourth proportional to 2,257.21, 3,385.76 and 1,219.24 is: 1,828.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,257.21 : 3,385.76 = 1,219.24 : x
  2. Step 2: Convert to fraction form
    2,257.21/3,385.76 = 1,219.24/x
  3. Step 3: Cross multiply
    2,257.21x = 3,385.76 × 1,219.24
  4. Step 4: Simplify right side
    2,257.21x = 4,128,052.54
  5. Step 5: Solve for x
    x = 4,128,052.54/2,257.21
  6. Step 6: Final answer
    x = 1,828.83

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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.