Home / 2,949.75-4,041.20-2,839.05

Finding the Fourth Proportional to 2,949.75, 4,041.20 and 2,839.05

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Solution

The fourth proportional to 2,949.75, 4,041.20 and 2,839.05 is: 3,889.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,949.75 : 4,041.20 = 2,839.05 : x
  2. Step 2: Convert to fraction form
    2,949.75/4,041.20 = 2,839.05/x
  3. Step 3: Cross multiply
    2,949.75x = 4,041.20 × 2,839.05
  4. Step 4: Simplify right side
    2,949.75x = 11,473,175.96
  5. Step 5: Solve for x
    x = 11,473,175.96/2,949.75
  6. Step 6: Final answer
    x = 3,889.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.