Home / 3,983.53-5,494.73-3,143.97

Finding the Fourth Proportional to 3,983.53, 5,494.73 and 3,143.97

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Solution

The fourth proportional to 3,983.53, 5,494.73 and 3,143.97 is: 4,336.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,983.53 : 5,494.73 = 3,143.97 : x
  2. Step 2: Convert to fraction form
    3,983.53/5,494.73 = 3,143.97/x
  3. Step 3: Cross multiply
    3,983.53x = 5,494.73 × 3,143.97
  4. Step 4: Simplify right side
    3,983.53x = 17,275,266.28
  5. Step 5: Solve for x
    x = 17,275,266.28/3,983.53
  6. Step 6: Final answer
    x = 4,336.67

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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.