Home / 4,190.44-6,288.54-2,139.88

Finding the Fourth Proportional to 4,190.44, 6,288.54 and 2,139.88

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Solution

The fourth proportional to 4,190.44, 6,288.54 and 2,139.88 is: 3,211.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,190.44 : 6,288.54 = 2,139.88 : x
  2. Step 2: Convert to fraction form
    4,190.44/6,288.54 = 2,139.88/x
  3. Step 3: Cross multiply
    4,190.44x = 6,288.54 × 2,139.88
  4. Step 4: Simplify right side
    4,190.44x = 13,456,720.98
  5. Step 5: Solve for x
    x = 13,456,720.98/4,190.44
  6. Step 6: Final answer
    x = 3,211.29

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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.