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Finding the Fourth Proportional to 2,760.66, 3,809.25 and 1,828.98

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Solution

The fourth proportional to 2,760.66, 3,809.25 and 1,828.98 is: 2,523.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,760.66 : 3,809.25 = 1,828.98 : x
  2. Step 2: Convert to fraction form
    2,760.66/3,809.25 = 1,828.98/x
  3. Step 3: Cross multiply
    2,760.66x = 3,809.25 × 1,828.98
  4. Step 4: Simplify right side
    2,760.66x = 6,967,042.07
  5. Step 5: Solve for x
    x = 6,967,042.07/2,760.66
  6. Step 6: Final answer
    x = 2,523.69

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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.