Home / 4,121.31-6,181.12-1,348.06

Finding the Fourth Proportional to 4,121.31, 6,181.12 and 1,348.06

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Solution

The fourth proportional to 4,121.31, 6,181.12 and 1,348.06 is: 2,021.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.31 : 6,181.12 = 1,348.06 : x
  2. Step 2: Convert to fraction form
    4,121.31/6,181.12 = 1,348.06/x
  3. Step 3: Cross multiply
    4,121.31x = 6,181.12 × 1,348.06
  4. Step 4: Simplify right side
    4,121.31x = 8,332,520.63
  5. Step 5: Solve for x
    x = 8,332,520.63/4,121.31
  6. Step 6: Final answer
    x = 2,021.81

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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.