Home / 2,196.35-3,278.87-2,119.44

Finding the Fourth Proportional to 2,196.35, 3,278.87 and 2,119.44

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Solution

The fourth proportional to 2,196.35, 3,278.87 and 2,119.44 is: 3,164.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,196.35 : 3,278.87 = 2,119.44 : x
  2. Step 2: Convert to fraction form
    2,196.35/3,278.87 = 2,119.44/x
  3. Step 3: Cross multiply
    2,196.35x = 3,278.87 × 2,119.44
  4. Step 4: Simplify right side
    2,196.35x = 6,949,368.23
  5. Step 5: Solve for x
    x = 6,949,368.23/2,196.35
  6. Step 6: Final answer
    x = 3,164.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.