Home / 3,769.33-5,647.84-1,917.90

Finding the Fourth Proportional to 3,769.33, 5,647.84 and 1,917.90

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Solution

The fourth proportional to 3,769.33, 5,647.84 and 1,917.90 is: 2,873.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,769.33 : 5,647.84 = 1,917.90 : x
  2. Step 2: Convert to fraction form
    3,769.33/5,647.84 = 1,917.90/x
  3. Step 3: Cross multiply
    3,769.33x = 5,647.84 × 1,917.90
  4. Step 4: Simplify right side
    3,769.33x = 10,831,976.45
  5. Step 5: Solve for x
    x = 10,831,976.45/3,769.33
  6. Step 6: Final answer
    x = 2,873.72

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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.