Home / 3,431.95-5,147.79-2,388.94

Finding the Fourth Proportional to 3,431.95, 5,147.79 and 2,388.94

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Solution

The fourth proportional to 3,431.95, 5,147.79 and 2,388.94 is: 3,583.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.95 : 5,147.79 = 2,388.94 : x
  2. Step 2: Convert to fraction form
    3,431.95/5,147.79 = 2,388.94/x
  3. Step 3: Cross multiply
    3,431.95x = 5,147.79 × 2,388.94
  4. Step 4: Simplify right side
    3,431.95x = 12,297,761.44
  5. Step 5: Solve for x
    x = 12,297,761.44/3,431.95
  6. Step 6: Final answer
    x = 3,583.32

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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.