Home / 1,440.33-1,986.67-1,163.54

Finding the Fourth Proportional to 1,440.33, 1,986.67 and 1,163.54

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Solution

The fourth proportional to 1,440.33, 1,986.67 and 1,163.54 is: 1,604.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440.33 : 1,986.67 = 1,163.54 : x
  2. Step 2: Convert to fraction form
    1,440.33/1,986.67 = 1,163.54/x
  3. Step 3: Cross multiply
    1,440.33x = 1,986.67 × 1,163.54
  4. Step 4: Simplify right side
    1,440.33x = 2,311,570.01
  5. Step 5: Solve for x
    x = 2,311,570.01/1,440.33
  6. Step 6: Final answer
    x = 1,604.89

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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.