Home / 3,084.28-4,629.39-2,917.78

Finding the Fourth Proportional to 3,084.28, 4,629.39 and 2,917.78

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Solution

The fourth proportional to 3,084.28, 4,629.39 and 2,917.78 is: 4,379.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,084.28 : 4,629.39 = 2,917.78 : x
  2. Step 2: Convert to fraction form
    3,084.28/4,629.39 = 2,917.78/x
  3. Step 3: Cross multiply
    3,084.28x = 4,629.39 × 2,917.78
  4. Step 4: Simplify right side
    3,084.28x = 13,507,541.55
  5. Step 5: Solve for x
    x = 13,507,541.55/3,084.28
  6. Step 6: Final answer
    x = 4,379.48

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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.