Home / 3,747.40-5,172.44-2,176

Finding the Fourth Proportional to 3,747.40, 5,172.44 and 2,176

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Solution

The fourth proportional to 3,747.40, 5,172.44 and 2,176 is: 3,003.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,747.40 : 5,172.44 = 2,176 : x
  2. Step 2: Convert to fraction form
    3,747.40/5,172.44 = 2,176/x
  3. Step 3: Cross multiply
    3,747.40x = 5,172.44 × 2,176
  4. Step 4: Simplify right side
    3,747.40x = 11,255,229.44
  5. Step 5: Solve for x
    x = 11,255,229.44/3,747.40
  6. Step 6: Final answer
    x = 3,003.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.