Home / 3,278.22-4,914.12-1,814.28

Finding the Fourth Proportional to 3,278.22, 4,914.12 and 1,814.28

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Solution

The fourth proportional to 3,278.22, 4,914.12 and 1,814.28 is: 2,719.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.22 : 4,914.12 = 1,814.28 : x
  2. Step 2: Convert to fraction form
    3,278.22/4,914.12 = 1,814.28/x
  3. Step 3: Cross multiply
    3,278.22x = 4,914.12 × 1,814.28
  4. Step 4: Simplify right side
    3,278.22x = 8,915,589.63
  5. Step 5: Solve for x
    x = 8,915,589.63/3,278.22
  6. Step 6: Final answer
    x = 2,719.64

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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.