Home / 2,747.09-4,121.24-1,285.45

Finding the Fourth Proportional to 2,747.09, 4,121.24 and 1,285.45

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Solution

The fourth proportional to 2,747.09, 4,121.24 and 1,285.45 is: 1,928.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,747.09 : 4,121.24 = 1,285.45 : x
  2. Step 2: Convert to fraction form
    2,747.09/4,121.24 = 1,285.45/x
  3. Step 3: Cross multiply
    2,747.09x = 4,121.24 × 1,285.45
  4. Step 4: Simplify right side
    2,747.09x = 5,297,647.96
  5. Step 5: Solve for x
    x = 5,297,647.96/2,747.09
  6. Step 6: Final answer
    x = 1,928.46

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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.