Home / 3,278.22-4,916.61-1,086.42

Finding the Fourth Proportional to 3,278.22, 4,916.61 and 1,086.42

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Solution

The fourth proportional to 3,278.22, 4,916.61 and 1,086.42 is: 1,629.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.22 : 4,916.61 = 1,086.42 : x
  2. Step 2: Convert to fraction form
    3,278.22/4,916.61 = 1,086.42/x
  3. Step 3: Cross multiply
    3,278.22x = 4,916.61 × 1,086.42
  4. Step 4: Simplify right side
    3,278.22x = 5,341,503.44
  5. Step 5: Solve for x
    x = 5,341,503.44/3,278.22
  6. Step 6: Final answer
    x = 1,629.39

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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.