Home / 3,399.91-5,099.85-1,208.72

Finding the Fourth Proportional to 3,399.91, 5,099.85 and 1,208.72

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Solution

The fourth proportional to 3,399.91, 5,099.85 and 1,208.72 is: 1,813.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,399.91 : 5,099.85 = 1,208.72 : x
  2. Step 2: Convert to fraction form
    3,399.91/5,099.85 = 1,208.72/x
  3. Step 3: Cross multiply
    3,399.91x = 5,099.85 × 1,208.72
  4. Step 4: Simplify right side
    3,399.91x = 6,164,290.69
  5. Step 5: Solve for x
    x = 6,164,290.69/3,399.91
  6. Step 6: Final answer
    x = 1,813.08

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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.