Home / 4,112.70-6,172.71-1,922.64

Finding the Fourth Proportional to 4,112.70, 6,172.71 and 1,922.64

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Solution

The fourth proportional to 4,112.70, 6,172.71 and 1,922.64 is: 2,885.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,112.70 : 6,172.71 = 1,922.64 : x
  2. Step 2: Convert to fraction form
    4,112.70/6,172.71 = 1,922.64/x
  3. Step 3: Cross multiply
    4,112.70x = 6,172.71 × 1,922.64
  4. Step 4: Simplify right side
    4,112.70x = 11,867,899.15
  5. Step 5: Solve for x
    x = 11,867,899.15/4,112.70
  6. Step 6: Final answer
    x = 2,885.67

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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.