Home / 3,228.78-4,455.82-1,902.36

Finding the Fourth Proportional to 3,228.78, 4,455.82 and 1,902.36

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Solution

The fourth proportional to 3,228.78, 4,455.82 and 1,902.36 is: 2,625.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,228.78 : 4,455.82 = 1,902.36 : x
  2. Step 2: Convert to fraction form
    3,228.78/4,455.82 = 1,902.36/x
  3. Step 3: Cross multiply
    3,228.78x = 4,455.82 × 1,902.36
  4. Step 4: Simplify right side
    3,228.78x = 8,476,573.74
  5. Step 5: Solve for x
    x = 8,476,573.74/3,228.78
  6. Step 6: Final answer
    x = 2,625.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.