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Finding the Fourth Proportional to 2,869.19, 4,303.78 and 789.04

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Solution

The fourth proportional to 2,869.19, 4,303.78 and 789.04 is: 1,183.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,869.19 : 4,303.78 = 789.04 : x
  2. Step 2: Convert to fraction form
    2,869.19/4,303.78 = 789.04/x
  3. Step 3: Cross multiply
    2,869.19x = 4,303.78 × 789.04
  4. Step 4: Simplify right side
    2,869.19x = 3,395,854.57
  5. Step 5: Solve for x
    x = 3,395,854.57/2,869.19
  6. Step 6: Final answer
    x = 1,183.56

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1.5x scale

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.