Home / 4,071.26-6,105.68-2,122.40

Finding the Fourth Proportional to 4,071.26, 6,105.68 and 2,122.40

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Solution

The fourth proportional to 4,071.26, 6,105.68 and 2,122.40 is: 3,182.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,071.26 : 6,105.68 = 2,122.40 : x
  2. Step 2: Convert to fraction form
    4,071.26/6,105.68 = 2,122.40/x
  3. Step 3: Cross multiply
    4,071.26x = 6,105.68 × 2,122.40
  4. Step 4: Simplify right side
    4,071.26x = 12,958,707.84
  5. Step 5: Solve for x
    x = 12,958,707.84/4,071.26
  6. Step 6: Final answer
    x = 3,182.97

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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.