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Finding the Fourth Proportional to 1,828.57, 2,741.01 and 789.25

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Solution

The fourth proportional to 1,828.57, 2,741.01 and 789.25 is: 1,183.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,828.57 : 2,741.01 = 789.25 : x
  2. Step 2: Convert to fraction form
    1,828.57/2,741.01 = 789.25/x
  3. Step 3: Cross multiply
    1,828.57x = 2,741.01 × 789.25
  4. Step 4: Simplify right side
    1,828.57x = 2,163,342.14
  5. Step 5: Solve for x
    x = 2,163,342.14/1,828.57
  6. Step 6: Final answer
    x = 1,183.08

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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.