Home / 5,919.89-8,169.30-3,231.18

Finding the Fourth Proportional to 5,919.89, 8,169.30 and 3,231.18

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Solution

The fourth proportional to 5,919.89, 8,169.30 and 3,231.18 is: 4,458.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,919.89 : 8,169.30 = 3,231.18 : x
  2. Step 2: Convert to fraction form
    5,919.89/8,169.30 = 3,231.18/x
  3. Step 3: Cross multiply
    5,919.89x = 8,169.30 × 3,231.18
  4. Step 4: Simplify right side
    5,919.89x = 26,396,478.77
  5. Step 5: Solve for x
    x = 26,396,478.77/5,919.89
  6. Step 6: Final answer
    x = 4,458.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.