Home / 3,357.21-5,037.80-1,278.97

Finding the Fourth Proportional to 3,357.21, 5,037.80 and 1,278.97

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Solution

The fourth proportional to 3,357.21, 5,037.80 and 1,278.97 is: 1,919.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,357.21 : 5,037.80 = 1,278.97 : x
  2. Step 2: Convert to fraction form
    3,357.21/5,037.80 = 1,278.97/x
  3. Step 3: Cross multiply
    3,357.21x = 5,037.80 × 1,278.97
  4. Step 4: Simplify right side
    3,357.21x = 6,443,195.07
  5. Step 5: Solve for x
    x = 6,443,195.07/3,357.21
  6. Step 6: Final answer
    x = 1,919.21

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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.