Home / 3,629.84-5,445.30-1,289.65

Finding the Fourth Proportional to 3,629.84, 5,445.30 and 1,289.65

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Solution

The fourth proportional to 3,629.84, 5,445.30 and 1,289.65 is: 1,934.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,629.84 : 5,445.30 = 1,289.65 : x
  2. Step 2: Convert to fraction form
    3,629.84/5,445.30 = 1,289.65/x
  3. Step 3: Cross multiply
    3,629.84x = 5,445.30 × 1,289.65
  4. Step 4: Simplify right side
    3,629.84x = 7,022,531.15
  5. Step 5: Solve for x
    x = 7,022,531.15/3,629.84
  6. Step 6: Final answer
    x = 1,934.67

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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.