Home / 2,057.62-2,839.96-1,311.41

Finding the Fourth Proportional to 2,057.62, 2,839.96 and 1,311.41

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Solution

The fourth proportional to 2,057.62, 2,839.96 and 1,311.41 is: 1,810.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,057.62 : 2,839.96 = 1,311.41 : x
  2. Step 2: Convert to fraction form
    2,057.62/2,839.96 = 1,311.41/x
  3. Step 3: Cross multiply
    2,057.62x = 2,839.96 × 1,311.41
  4. Step 4: Simplify right side
    2,057.62x = 3,724,351.94
  5. Step 5: Solve for x
    x = 3,724,351.94/2,057.62
  6. Step 6: Final answer
    x = 1,810.03

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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.