Home / 3,180.84-4,771.26-1,890.60

Finding the Fourth Proportional to 3,180.84, 4,771.26 and 1,890.60

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Solution

The fourth proportional to 3,180.84, 4,771.26 and 1,890.60 is: 2,835.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.84 : 4,771.26 = 1,890.60 : x
  2. Step 2: Convert to fraction form
    3,180.84/4,771.26 = 1,890.60/x
  3. Step 3: Cross multiply
    3,180.84x = 4,771.26 × 1,890.60
  4. Step 4: Simplify right side
    3,180.84x = 9,020,544.16
  5. Step 5: Solve for x
    x = 9,020,544.16/3,180.84
  6. Step 6: Final answer
    x = 2,835.90

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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.