Home / 3,600.50-5,400.75-1,003.51

Finding the Fourth Proportional to 3,600.50, 5,400.75 and 1,003.51

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Solution

The fourth proportional to 3,600.50, 5,400.75 and 1,003.51 is: 1,505.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,600.50 : 5,400.75 = 1,003.51 : x
  2. Step 2: Convert to fraction form
    3,600.50/5,400.75 = 1,003.51/x
  3. Step 3: Cross multiply
    3,600.50x = 5,400.75 × 1,003.51
  4. Step 4: Simplify right side
    3,600.50x = 5,419,706.63
  5. Step 5: Solve for x
    x = 5,419,706.63/3,600.50
  6. Step 6: Final answer
    x = 1,505.27

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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.