Home / 3,555.56-5,335.74-2,131.96

Finding the Fourth Proportional to 3,555.56, 5,335.74 and 2,131.96

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Solution

The fourth proportional to 3,555.56, 5,335.74 and 2,131.96 is: 3,199.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,555.56 : 5,335.74 = 2,131.96 : x
  2. Step 2: Convert to fraction form
    3,555.56/5,335.74 = 2,131.96/x
  3. Step 3: Cross multiply
    3,555.56x = 5,335.74 × 2,131.96
  4. Step 4: Simplify right side
    3,555.56x = 11,375,586.93
  5. Step 5: Solve for x
    x = 11,375,586.93/3,555.56
  6. Step 6: Final answer
    x = 3,199.38

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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.