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Finding the Fourth Proportional to 2,869.08, 4,303.56 and 789.08

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Solution

The fourth proportional to 2,869.08, 4,303.56 and 789.08 is: 1,183.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,869.08 : 4,303.56 = 789.08 : x
  2. Step 2: Convert to fraction form
    2,869.08/4,303.56 = 789.08/x
  3. Step 3: Cross multiply
    2,869.08x = 4,303.56 × 789.08
  4. Step 4: Simplify right side
    2,869.08x = 3,395,831.61
  5. Step 5: Solve for x
    x = 3,395,831.61/2,869.08
  6. Step 6: Final answer
    x = 1,183.60

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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.