Home / 3,768.72-5,647.60-3,378.70

Finding the Fourth Proportional to 3,768.72, 5,647.60 and 3,378.70

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Solution

The fourth proportional to 3,768.72, 5,647.60 and 3,378.70 is: 5,063.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,768.72 : 5,647.60 = 3,378.70 : x
  2. Step 2: Convert to fraction form
    3,768.72/5,647.60 = 3,378.70/x
  3. Step 3: Cross multiply
    3,768.72x = 5,647.60 × 3,378.70
  4. Step 4: Simplify right side
    3,768.72x = 19,081,546.12
  5. Step 5: Solve for x
    x = 19,081,546.12/3,768.72
  6. Step 6: Final answer
    x = 5,063.14

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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.