Home / 4,481.89-6,722.69-2,143.53

Finding the Fourth Proportional to 4,481.89, 6,722.69 and 2,143.53

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Solution

The fourth proportional to 4,481.89, 6,722.69 and 2,143.53 is: 3,215.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,481.89 : 6,722.69 = 2,143.53 : x
  2. Step 2: Convert to fraction form
    4,481.89/6,722.69 = 2,143.53/x
  3. Step 3: Cross multiply
    4,481.89x = 6,722.69 × 2,143.53
  4. Step 4: Simplify right side
    4,481.89x = 14,410,287.70
  5. Step 5: Solve for x
    x = 14,410,287.70/4,481.89
  6. Step 6: Final answer
    x = 3,215.23

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1.5x scale

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.