Home / 3,739.62-5,610.40-1,399.64

Finding the Fourth Proportional to 3,739.62, 5,610.40 and 1,399.64

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Solution

The fourth proportional to 3,739.62, 5,610.40 and 1,399.64 is: 2,099.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,739.62 : 5,610.40 = 1,399.64 : x
  2. Step 2: Convert to fraction form
    3,739.62/5,610.40 = 1,399.64/x
  3. Step 3: Cross multiply
    3,739.62x = 5,610.40 × 1,399.64
  4. Step 4: Simplify right side
    3,739.62x = 7,852,550.78
  5. Step 5: Solve for x
    x = 7,852,550.78/3,739.62
  6. Step 6: Final answer
    x = 2,099.83

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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.