Home / 1,318.37-1,968.48-1,163.07

Finding the Fourth Proportional to 1,318.37, 1,968.48 and 1,163.07

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Solution

The fourth proportional to 1,318.37, 1,968.48 and 1,163.07 is: 1,736.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318.37 : 1,968.48 = 1,163.07 : x
  2. Step 2: Convert to fraction form
    1,318.37/1,968.48 = 1,163.07/x
  3. Step 3: Cross multiply
    1,318.37x = 1,968.48 × 1,163.07
  4. Step 4: Simplify right side
    1,318.37x = 2,289,480.03
  5. Step 5: Solve for x
    x = 2,289,480.03/1,318.37
  6. Step 6: Final answer
    x = 1,736.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.