Home / 3,576.78-4,935.75-1,983.30

Finding the Fourth Proportional to 3,576.78, 4,935.75 and 1,983.30

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Solution

The fourth proportional to 3,576.78, 4,935.75 and 1,983.30 is: 2,736.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,576.78 : 4,935.75 = 1,983.30 : x
  2. Step 2: Convert to fraction form
    3,576.78/4,935.75 = 1,983.30/x
  3. Step 3: Cross multiply
    3,576.78x = 4,935.75 × 1,983.30
  4. Step 4: Simplify right side
    3,576.78x = 9,789,072.98
  5. Step 5: Solve for x
    x = 9,789,072.98/3,576.78
  6. Step 6: Final answer
    x = 2,736.84

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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.