Home / 3,902.49-5,852.86-1,128.54

Finding the Fourth Proportional to 3,902.49, 5,852.86 and 1,128.54

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Solution

The fourth proportional to 3,902.49, 5,852.86 and 1,128.54 is: 1,692.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,902.49 : 5,852.86 = 1,128.54 : x
  2. Step 2: Convert to fraction form
    3,902.49/5,852.86 = 1,128.54/x
  3. Step 3: Cross multiply
    3,902.49x = 5,852.86 × 1,128.54
  4. Step 4: Simplify right side
    3,902.49x = 6,605,180.98
  5. Step 5: Solve for x
    x = 6,605,180.98/3,902.49
  6. Step 6: Final answer
    x = 1,692.56

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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.