Home / 3,427.80-5,138.16-1,944.84

Finding the Fourth Proportional to 3,427.80, 5,138.16 and 1,944.84

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Solution

The fourth proportional to 3,427.80, 5,138.16 and 1,944.84 is: 2,915.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,427.80 : 5,138.16 = 1,944.84 : x
  2. Step 2: Convert to fraction form
    3,427.80/5,138.16 = 1,944.84/x
  3. Step 3: Cross multiply
    3,427.80x = 5,138.16 × 1,944.84
  4. Step 4: Simplify right side
    3,427.80x = 9,992,899.09
  5. Step 5: Solve for x
    x = 9,992,899.09/3,427.80
  6. Step 6: Final answer
    x = 2,915.25

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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.