Home / 2,631.63-3,944.61-1,333.20

Finding the Fourth Proportional to 2,631.63, 3,944.61 and 1,333.20

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Solution

The fourth proportional to 2,631.63, 3,944.61 and 1,333.20 is: 1,998.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631.63 : 3,944.61 = 1,333.20 : x
  2. Step 2: Convert to fraction form
    2,631.63/3,944.61 = 1,333.20/x
  3. Step 3: Cross multiply
    2,631.63x = 3,944.61 × 1,333.20
  4. Step 4: Simplify right side
    2,631.63x = 5,258,954.05
  5. Step 5: Solve for x
    x = 5,258,954.05/2,631.63
  6. Step 6: Final answer
    x = 1,998.36

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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.