Home / 2,922.71-4,380.62-1,072.62

Finding the Fourth Proportional to 2,922.71, 4,380.62 and 1,072.62

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Solution

The fourth proportional to 2,922.71, 4,380.62 and 1,072.62 is: 1,607.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,922.71 : 4,380.62 = 1,072.62 : x
  2. Step 2: Convert to fraction form
    2,922.71/4,380.62 = 1,072.62/x
  3. Step 3: Cross multiply
    2,922.71x = 4,380.62 × 1,072.62
  4. Step 4: Simplify right side
    2,922.71x = 4,698,735.26
  5. Step 5: Solve for x
    x = 4,698,735.26/2,922.71
  6. Step 6: Final answer
    x = 1,607.67

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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.