Home / 2,876.22-3,969.20-1,634.22

Finding the Fourth Proportional to 2,876.22, 3,969.20 and 1,634.22

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Solution

The fourth proportional to 2,876.22, 3,969.20 and 1,634.22 is: 2,255.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,876.22 : 3,969.20 = 1,634.22 : x
  2. Step 2: Convert to fraction form
    2,876.22/3,969.20 = 1,634.22/x
  3. Step 3: Cross multiply
    2,876.22x = 3,969.20 × 1,634.22
  4. Step 4: Simplify right side
    2,876.22x = 6,486,546.02
  5. Step 5: Solve for x
    x = 6,486,546.02/2,876.22
  6. Step 6: Final answer
    x = 2,255.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.