Home / 1,549.54-2,138.33-850.90

Finding the Fourth Proportional to 1,549.54, 2,138.33 and 850.90

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Solution

The fourth proportional to 1,549.54, 2,138.33 and 850.90 is: 1,174.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,549.54 : 2,138.33 = 850.90 : x
  2. Step 2: Convert to fraction form
    1,549.54/2,138.33 = 850.90/x
  3. Step 3: Cross multiply
    1,549.54x = 2,138.33 × 850.90
  4. Step 4: Simplify right side
    1,549.54x = 1,819,505.00
  5. Step 5: Solve for x
    x = 1,819,505.00/1,549.54
  6. Step 6: Final answer
    x = 1,174.22

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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.