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Finding the Fourth Proportional to 2,869.26, 4,303.18 and 789.16

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Solution

The fourth proportional to 2,869.26, 4,303.18 and 789.16 is: 1,183.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,869.26 : 4,303.18 = 789.16 : x
  2. Step 2: Convert to fraction form
    2,869.26/4,303.18 = 789.16/x
  3. Step 3: Cross multiply
    2,869.26x = 4,303.18 × 789.16
  4. Step 4: Simplify right side
    2,869.26x = 3,395,896.16
  5. Step 5: Solve for x
    x = 3,395,896.16/2,869.26
  6. Step 6: Final answer
    x = 1,183.55

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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.