Home / 2,782.06-3,839.43-1,787.65

Finding the Fourth Proportional to 2,782.06, 3,839.43 and 1,787.65

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Solution

The fourth proportional to 2,782.06, 3,839.43 and 1,787.65 is: 2,467.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782.06 : 3,839.43 = 1,787.65 : x
  2. Step 2: Convert to fraction form
    2,782.06/3,839.43 = 1,787.65/x
  3. Step 3: Cross multiply
    2,782.06x = 3,839.43 × 1,787.65
  4. Step 4: Simplify right side
    2,782.06x = 6,863,537.84
  5. Step 5: Solve for x
    x = 6,863,537.84/2,782.06
  6. Step 6: Final answer
    x = 2,467.07

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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.