Home / 3,576-4,936.80-2,788.16

Finding the Fourth Proportional to 3,576, 4,936.80 and 2,788.16

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Solution

The fourth proportional to 3,576, 4,936.80 and 2,788.16 is: 3,849.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,576 : 4,936.80 = 2,788.16 : x
  2. Step 2: Convert to fraction form
    3,576/4,936.80 = 2,788.16/x
  3. Step 3: Cross multiply
    3,576x = 4,936.80 × 2,788.16
  4. Step 4: Simplify right side
    3,576x = 13,764,588.29
  5. Step 5: Solve for x
    x = 13,764,588.29/3,576
  6. Step 6: Final answer
    x = 3,849.16

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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.