Home / 3,738.96-5,609.06-1,399.79

Finding the Fourth Proportional to 3,738.96, 5,609.06 and 1,399.79

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Solution

The fourth proportional to 3,738.96, 5,609.06 and 1,399.79 is: 2,099.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,738.96 : 5,609.06 = 1,399.79 : x
  2. Step 2: Convert to fraction form
    3,738.96/5,609.06 = 1,399.79/x
  3. Step 3: Cross multiply
    3,738.96x = 5,609.06 × 1,399.79
  4. Step 4: Simplify right side
    3,738.96x = 7,851,506.10
  5. Step 5: Solve for x
    x = 7,851,506.10/3,738.96
  6. Step 6: Final answer
    x = 2,099.92

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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.