Home / 2,388.44-3,580.79-1,138.38

Finding the Fourth Proportional to 2,388.44, 3,580.79 and 1,138.38

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Solution

The fourth proportional to 2,388.44, 3,580.79 and 1,138.38 is: 1,706.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,388.44 : 3,580.79 = 1,138.38 : x
  2. Step 2: Convert to fraction form
    2,388.44/3,580.79 = 1,138.38/x
  3. Step 3: Cross multiply
    2,388.44x = 3,580.79 × 1,138.38
  4. Step 4: Simplify right side
    2,388.44x = 4,076,294.03
  5. Step 5: Solve for x
    x = 4,076,294.03/2,388.44
  6. Step 6: Final answer
    x = 1,706.68

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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.