Home / 3,983.40-5,971.32-2,007.72

Finding the Fourth Proportional to 3,983.40, 5,971.32 and 2,007.72

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Solution

The fourth proportional to 3,983.40, 5,971.32 and 2,007.72 is: 3,009.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,983.40 : 5,971.32 = 2,007.72 : x
  2. Step 2: Convert to fraction form
    3,983.40/5,971.32 = 2,007.72/x
  3. Step 3: Cross multiply
    3,983.40x = 5,971.32 × 2,007.72
  4. Step 4: Simplify right side
    3,983.40x = 11,988,738.59
  5. Step 5: Solve for x
    x = 11,988,738.59/3,983.40
  6. Step 6: Final answer
    x = 3,009.67

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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.