Home / 1,409.90-1,945.67-850.26

Finding the Fourth Proportional to 1,409.90, 1,945.67 and 850.26

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Solution

The fourth proportional to 1,409.90, 1,945.67 and 850.26 is: 1,173.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409.90 : 1,945.67 = 850.26 : x
  2. Step 2: Convert to fraction form
    1,409.90/1,945.67 = 850.26/x
  3. Step 3: Cross multiply
    1,409.90x = 1,945.67 × 850.26
  4. Step 4: Simplify right side
    1,409.90x = 1,654,321.12
  5. Step 5: Solve for x
    x = 1,654,321.12/1,409.90
  6. Step 6: Final answer
    x = 1,173.36

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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.