Home / 2,234.40-3,355.20-1,687.20

Finding the Fourth Proportional to 2,234.40, 3,355.20 and 1,687.20

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Solution

The fourth proportional to 2,234.40, 3,355.20 and 1,687.20 is: 2,533.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,234.40 : 3,355.20 = 1,687.20 : x
  2. Step 2: Convert to fraction form
    2,234.40/3,355.20 = 1,687.20/x
  3. Step 3: Cross multiply
    2,234.40x = 3,355.20 × 1,687.20
  4. Step 4: Simplify right side
    2,234.40x = 5,660,893.44
  5. Step 5: Solve for x
    x = 5,660,893.44/2,234.40
  6. Step 6: Final answer
    x = 2,533.52

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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.