Home / 3,186.96-4,780.44-1,455.36

Finding the Fourth Proportional to 3,186.96, 4,780.44 and 1,455.36

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Solution

The fourth proportional to 3,186.96, 4,780.44 and 1,455.36 is: 2,183.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.96 : 4,780.44 = 1,455.36 : x
  2. Step 2: Convert to fraction form
    3,186.96/4,780.44 = 1,455.36/x
  3. Step 3: Cross multiply
    3,186.96x = 4,780.44 × 1,455.36
  4. Step 4: Simplify right side
    3,186.96x = 6,957,261.16
  5. Step 5: Solve for x
    x = 6,957,261.16/3,186.96
  6. Step 6: Final answer
    x = 2,183.04

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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.