Home / 6,119.40-9,171.90-3,196.20

Finding the Fourth Proportional to 6,119.40, 9,171.90 and 3,196.20

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Solution

The fourth proportional to 6,119.40, 9,171.90 and 3,196.20 is: 4,790.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,119.40 : 9,171.90 = 3,196.20 : x
  2. Step 2: Convert to fraction form
    6,119.40/9,171.90 = 3,196.20/x
  3. Step 3: Cross multiply
    6,119.40x = 9,171.90 × 3,196.20
  4. Step 4: Simplify right side
    6,119.40x = 29,315,226.78
  5. Step 5: Solve for x
    x = 29,315,226.78/6,119.40
  6. Step 6: Final answer
    x = 4,790.54

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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.