Home / 1,949.36-2,688.60-1,163.24

Finding the Fourth Proportional to 1,949.36, 2,688.60 and 1,163.24

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Solution

The fourth proportional to 1,949.36, 2,688.60 and 1,163.24 is: 1,604.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,949.36 : 2,688.60 = 1,163.24 : x
  2. Step 2: Convert to fraction form
    1,949.36/2,688.60 = 1,163.24/x
  3. Step 3: Cross multiply
    1,949.36x = 2,688.60 × 1,163.24
  4. Step 4: Simplify right side
    1,949.36x = 3,127,487.06
  5. Step 5: Solve for x
    x = 3,127,487.06/1,949.36
  6. Step 6: Final answer
    x = 1,604.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.