Home / 3,600.82-5,400.87-1,260.39

Finding the Fourth Proportional to 3,600.82, 5,400.87 and 1,260.39

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Solution

The fourth proportional to 3,600.82, 5,400.87 and 1,260.39 is: 1,890.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,600.82 : 5,400.87 = 1,260.39 : x
  2. Step 2: Convert to fraction form
    3,600.82/5,400.87 = 1,260.39/x
  3. Step 3: Cross multiply
    3,600.82x = 5,400.87 × 1,260.39
  4. Step 4: Simplify right side
    3,600.82x = 6,807,202.54
  5. Step 5: Solve for x
    x = 6,807,202.54/3,600.82
  6. Step 6: Final answer
    x = 1,890.46

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1.5x scale

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.