Home / 1,815.37-2,722.73-481.17

Finding the Fourth Proportional to 1,815.37, 2,722.73 and 481.17

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Solution

The fourth proportional to 1,815.37, 2,722.73 and 481.17 is: 721.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815.37 : 2,722.73 = 481.17 : x
  2. Step 2: Convert to fraction form
    1,815.37/2,722.73 = 481.17/x
  3. Step 3: Cross multiply
    1,815.37x = 2,722.73 × 481.17
  4. Step 4: Simplify right side
    1,815.37x = 1,310,100.40
  5. Step 5: Solve for x
    x = 1,310,100.40/1,815.37
  6. Step 6: Final answer
    x = 721.67

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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.