Home / 3,600.42-5,400.85-1,260.33

Finding the Fourth Proportional to 3,600.42, 5,400.85 and 1,260.33

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Solution

The fourth proportional to 3,600.42, 5,400.85 and 1,260.33 is: 1,890.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,600.42 : 5,400.85 = 1,260.33 : x
  2. Step 2: Convert to fraction form
    3,600.42/5,400.85 = 1,260.33/x
  3. Step 3: Cross multiply
    3,600.42x = 5,400.85 × 1,260.33
  4. Step 4: Simplify right side
    3,600.42x = 6,806,853.28
  5. Step 5: Solve for x
    x = 6,806,853.28/3,600.42
  6. Step 6: Final answer
    x = 1,890.57

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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.