Home / 2,415.30-3,621.87-1,489.44

Finding the Fourth Proportional to 2,415.30, 3,621.87 and 1,489.44

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Solution

The fourth proportional to 2,415.30, 3,621.87 and 1,489.44 is: 2,233.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,415.30 : 3,621.87 = 1,489.44 : x
  2. Step 2: Convert to fraction form
    2,415.30/3,621.87 = 1,489.44/x
  3. Step 3: Cross multiply
    2,415.30x = 3,621.87 × 1,489.44
  4. Step 4: Simplify right side
    2,415.30x = 5,394,558.05
  5. Step 5: Solve for x
    x = 5,394,558.05/2,415.30
  6. Step 6: Final answer
    x = 2,233.49

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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.