Home / 2,376.78-3,279.94-1,382.64

Finding the Fourth Proportional to 2,376.78, 3,279.94 and 1,382.64

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Solution

The fourth proportional to 2,376.78, 3,279.94 and 1,382.64 is: 1,908.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,376.78 : 3,279.94 = 1,382.64 : x
  2. Step 2: Convert to fraction form
    2,376.78/3,279.94 = 1,382.64/x
  3. Step 3: Cross multiply
    2,376.78x = 3,279.94 × 1,382.64
  4. Step 4: Simplify right side
    2,376.78x = 4,534,976.24
  5. Step 5: Solve for x
    x = 4,534,976.24/2,376.78
  6. Step 6: Final answer
    x = 1,908.03

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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.