Home / 3,190.85-4,785.40-2,019.09

Finding the Fourth Proportional to 3,190.85, 4,785.40 and 2,019.09

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Solution

The fourth proportional to 3,190.85, 4,785.40 and 2,019.09 is: 3,028.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.85 : 4,785.40 = 2,019.09 : x
  2. Step 2: Convert to fraction form
    3,190.85/4,785.40 = 2,019.09/x
  3. Step 3: Cross multiply
    3,190.85x = 4,785.40 × 2,019.09
  4. Step 4: Simplify right side
    3,190.85x = 9,662,153.29
  5. Step 5: Solve for x
    x = 9,662,153.29/3,190.85
  6. Step 6: Final answer
    x = 3,028.08

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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.