Home / 1,440.16-1,986.66-850.48

Finding the Fourth Proportional to 1,440.16, 1,986.66 and 850.48

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Solution

The fourth proportional to 1,440.16, 1,986.66 and 850.48 is: 1,173.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440.16 : 1,986.66 = 850.48 : x
  2. Step 2: Convert to fraction form
    1,440.16/1,986.66 = 850.48/x
  3. Step 3: Cross multiply
    1,440.16x = 1,986.66 × 850.48
  4. Step 4: Simplify right side
    1,440.16x = 1,689,614.60
  5. Step 5: Solve for x
    x = 1,689,614.60/1,440.16
  6. Step 6: Final answer
    x = 1,173.21

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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.