Home / 3,084.81-4,629.05-1,138.38

Finding the Fourth Proportional to 3,084.81, 4,629.05 and 1,138.38

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Solution

The fourth proportional to 3,084.81, 4,629.05 and 1,138.38 is: 1,708.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,084.81 : 4,629.05 = 1,138.38 : x
  2. Step 2: Convert to fraction form
    3,084.81/4,629.05 = 1,138.38/x
  3. Step 3: Cross multiply
    3,084.81x = 4,629.05 × 1,138.38
  4. Step 4: Simplify right side
    3,084.81x = 5,269,612.25
  5. Step 5: Solve for x
    x = 5,269,612.25/3,084.81
  6. Step 6: Final answer
    x = 1,708.25

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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.