Home / 1,999.38-2,759.55-1,336.26

Finding the Fourth Proportional to 1,999.38, 2,759.55 and 1,336.26

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Solution

The fourth proportional to 1,999.38, 2,759.55 and 1,336.26 is: 1,844.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,999.38 : 2,759.55 = 1,336.26 : x
  2. Step 2: Convert to fraction form
    1,999.38/2,759.55 = 1,336.26/x
  3. Step 3: Cross multiply
    1,999.38x = 2,759.55 × 1,336.26
  4. Step 4: Simplify right side
    1,999.38x = 3,687,476.28
  5. Step 5: Solve for x
    x = 3,687,476.28/1,999.38
  6. Step 6: Final answer
    x = 1,844.31

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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.