Home / 1,912.66-2,641.88-1,726.09

Finding the Fourth Proportional to 1,912.66, 2,641.88 and 1,726.09

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Solution

The fourth proportional to 1,912.66, 2,641.88 and 1,726.09 is: 2,384.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912.66 : 2,641.88 = 1,726.09 : x
  2. Step 2: Convert to fraction form
    1,912.66/2,641.88 = 1,726.09/x
  3. Step 3: Cross multiply
    1,912.66x = 2,641.88 × 1,726.09
  4. Step 4: Simplify right side
    1,912.66x = 4,560,120.36
  5. Step 5: Solve for x
    x = 4,560,120.36/1,912.66
  6. Step 6: Final answer
    x = 2,384.18

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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.