Home / 1,334.62-2,004.09-1,278.46

Finding the Fourth Proportional to 1,334.62, 2,004.09 and 1,278.46

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Solution

The fourth proportional to 1,334.62, 2,004.09 and 1,278.46 is: 1,919.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,334.62 : 2,004.09 = 1,278.46 : x
  2. Step 2: Convert to fraction form
    1,334.62/2,004.09 = 1,278.46/x
  3. Step 3: Cross multiply
    1,334.62x = 2,004.09 × 1,278.46
  4. Step 4: Simplify right side
    1,334.62x = 2,562,143.89
  5. Step 5: Solve for x
    x = 2,562,143.89/1,334.62
  6. Step 6: Final answer
    x = 1,919.76

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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.