Home / 3,651.37-5,474.49-1,278.87

Finding the Fourth Proportional to 3,651.37, 5,474.49 and 1,278.87

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Solution

The fourth proportional to 3,651.37, 5,474.49 and 1,278.87 is: 1,917.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,651.37 : 5,474.49 = 1,278.87 : x
  2. Step 2: Convert to fraction form
    3,651.37/5,474.49 = 1,278.87/x
  3. Step 3: Cross multiply
    3,651.37x = 5,474.49 × 1,278.87
  4. Step 4: Simplify right side
    3,651.37x = 7,001,135.70
  5. Step 5: Solve for x
    x = 7,001,135.70/3,651.37
  6. Step 6: Final answer
    x = 1,917.40

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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.