Home / 2,728.49-4,089.89-1,266.44

Finding the Fourth Proportional to 2,728.49, 4,089.89 and 1,266.44

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Solution

The fourth proportional to 2,728.49, 4,089.89 and 1,266.44 is: 1,898.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,728.49 : 4,089.89 = 1,266.44 : x
  2. Step 2: Convert to fraction form
    2,728.49/4,089.89 = 1,266.44/x
  3. Step 3: Cross multiply
    2,728.49x = 4,089.89 × 1,266.44
  4. Step 4: Simplify right side
    2,728.49x = 5,179,573.51
  5. Step 5: Solve for x
    x = 5,179,573.51/2,728.49
  6. Step 6: Final answer
    x = 1,898.33

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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.