Home / 3,542.78-5,314.94-1,077.80

Finding the Fourth Proportional to 3,542.78, 5,314.94 and 1,077.80

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Solution

The fourth proportional to 3,542.78, 5,314.94 and 1,077.80 is: 1,616.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,542.78 : 5,314.94 = 1,077.80 : x
  2. Step 2: Convert to fraction form
    3,542.78/5,314.94 = 1,077.80/x
  3. Step 3: Cross multiply
    3,542.78x = 5,314.94 × 1,077.80
  4. Step 4: Simplify right side
    3,542.78x = 5,728,410.37
  5. Step 5: Solve for x
    x = 5,728,410.37/3,542.78
  6. Step 6: Final answer
    x = 1,616.93

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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.