Home / 3,984.09-5,497.79-2,491.94

Finding the Fourth Proportional to 3,984.09, 5,497.79 and 2,491.94

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Solution

The fourth proportional to 3,984.09, 5,497.79 and 2,491.94 is: 3,438.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,984.09 : 5,497.79 = 2,491.94 : x
  2. Step 2: Convert to fraction form
    3,984.09/5,497.79 = 2,491.94/x
  3. Step 3: Cross multiply
    3,984.09x = 5,497.79 × 2,491.94
  4. Step 4: Simplify right side
    3,984.09x = 13,700,155.30
  5. Step 5: Solve for x
    x = 13,700,155.30/3,984.09
  6. Step 6: Final answer
    x = 3,438.71

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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.