Home / 3,768.08-5,640.44-2,782.02

Finding the Fourth Proportional to 3,768.08, 5,640.44 and 2,782.02

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Solution

The fourth proportional to 3,768.08, 5,640.44 and 2,782.02 is: 4,164.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,768.08 : 5,640.44 = 2,782.02 : x
  2. Step 2: Convert to fraction form
    3,768.08/5,640.44 = 2,782.02/x
  3. Step 3: Cross multiply
    3,768.08x = 5,640.44 × 2,782.02
  4. Step 4: Simplify right side
    3,768.08x = 15,691,816.89
  5. Step 5: Solve for x
    x = 15,691,816.89/3,768.08
  6. Step 6: Final answer
    x = 4,164.41

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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.