Home / 4,128.39-6,194.34-2,742.21

Finding the Fourth Proportional to 4,128.39, 6,194.34 and 2,742.21

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Solution

The fourth proportional to 4,128.39, 6,194.34 and 2,742.21 is: 4,114.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,128.39 : 6,194.34 = 2,742.21 : x
  2. Step 2: Convert to fraction form
    4,128.39/6,194.34 = 2,742.21/x
  3. Step 3: Cross multiply
    4,128.39x = 6,194.34 × 2,742.21
  4. Step 4: Simplify right side
    4,128.39x = 16,986,181.09
  5. Step 5: Solve for x
    x = 16,986,181.09/4,128.39
  6. Step 6: Final answer
    x = 4,114.48

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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.