Home / 3,399.45-5,100.03-1,319.60

Finding the Fourth Proportional to 3,399.45, 5,100.03 and 1,319.60

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Solution

The fourth proportional to 3,399.45, 5,100.03 and 1,319.60 is: 1,979.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,399.45 : 5,100.03 = 1,319.60 : x
  2. Step 2: Convert to fraction form
    3,399.45/5,100.03 = 1,319.60/x
  3. Step 3: Cross multiply
    3,399.45x = 5,100.03 × 1,319.60
  4. Step 4: Simplify right side
    3,399.45x = 6,729,999.59
  5. Step 5: Solve for x
    x = 6,729,999.59/3,399.45
  6. Step 6: Final answer
    x = 1,979.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.