Home / 2,571.45-3,855.38-1,318.97

Finding the Fourth Proportional to 2,571.45, 3,855.38 and 1,318.97

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Solution

The fourth proportional to 2,571.45, 3,855.38 and 1,318.97 is: 1,977.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,571.45 : 3,855.38 = 1,318.97 : x
  2. Step 2: Convert to fraction form
    2,571.45/3,855.38 = 1,318.97/x
  3. Step 3: Cross multiply
    2,571.45x = 3,855.38 × 1,318.97
  4. Step 4: Simplify right side
    2,571.45x = 5,085,104.69
  5. Step 5: Solve for x
    x = 5,085,104.69/2,571.45
  6. Step 6: Final answer
    x = 1,977.52

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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.