Home / 4,081.89-6,122.18-1,119.72

Finding the Fourth Proportional to 4,081.89, 6,122.18 and 1,119.72

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Solution

The fourth proportional to 4,081.89, 6,122.18 and 1,119.72 is: 1,679.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,081.89 : 6,122.18 = 1,119.72 : x
  2. Step 2: Convert to fraction form
    4,081.89/6,122.18 = 1,119.72/x
  3. Step 3: Cross multiply
    4,081.89x = 6,122.18 × 1,119.72
  4. Step 4: Simplify right side
    4,081.89x = 6,855,153.15
  5. Step 5: Solve for x
    x = 6,855,153.15/4,081.89
  6. Step 6: Final answer
    x = 1,679.41

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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.