Home / 3,072.83-4,629.80-2,780.64

Finding the Fourth Proportional to 3,072.83, 4,629.80 and 2,780.64

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Solution

The fourth proportional to 3,072.83, 4,629.80 and 2,780.64 is: 4,189.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.83 : 4,629.80 = 2,780.64 : x
  2. Step 2: Convert to fraction form
    3,072.83/4,629.80 = 2,780.64/x
  3. Step 3: Cross multiply
    3,072.83x = 4,629.80 × 2,780.64
  4. Step 4: Simplify right side
    3,072.83x = 12,873,793.17
  5. Step 5: Solve for x
    x = 12,873,793.17/3,072.83
  6. Step 6: Final answer
    x = 4,189.56

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.