Home / 4,081.07-6,121.19-1,309.74

Finding the Fourth Proportional to 4,081.07, 6,121.19 and 1,309.74

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Solution

The fourth proportional to 4,081.07, 6,121.19 and 1,309.74 is: 1,964.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,081.07 : 6,121.19 = 1,309.74 : x
  2. Step 2: Convert to fraction form
    4,081.07/6,121.19 = 1,309.74/x
  3. Step 3: Cross multiply
    4,081.07x = 6,121.19 × 1,309.74
  4. Step 4: Simplify right side
    4,081.07x = 8,017,170.66
  5. Step 5: Solve for x
    x = 8,017,170.66/4,081.07
  6. Step 6: Final answer
    x = 1,964.48

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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.