Home / 3,144.14-4,334.91-1,964.78

Finding the Fourth Proportional to 3,144.14, 4,334.91 and 1,964.78

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Solution

The fourth proportional to 3,144.14, 4,334.91 and 1,964.78 is: 2,708.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,144.14 : 4,334.91 = 1,964.78 : x
  2. Step 2: Convert to fraction form
    3,144.14/4,334.91 = 1,964.78/x
  3. Step 3: Cross multiply
    3,144.14x = 4,334.91 × 1,964.78
  4. Step 4: Simplify right side
    3,144.14x = 8,517,144.47
  5. Step 5: Solve for x
    x = 8,517,144.47/3,144.14
  6. Step 6: Final answer
    x = 2,708.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.