Home / 3,342.78-5,010.41-1,261.37

Finding the Fourth Proportional to 3,342.78, 5,010.41 and 1,261.37

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Solution

The fourth proportional to 3,342.78, 5,010.41 and 1,261.37 is: 1,890.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,342.78 : 5,010.41 = 1,261.37 : x
  2. Step 2: Convert to fraction form
    3,342.78/5,010.41 = 1,261.37/x
  3. Step 3: Cross multiply
    3,342.78x = 5,010.41 × 1,261.37
  4. Step 4: Simplify right side
    3,342.78x = 6,319,982.42
  5. Step 5: Solve for x
    x = 6,319,982.42/3,342.78
  6. Step 6: Final answer
    x = 1,890.64

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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.