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Finding the Fourth Proportional to 3,600.91, 5,401.41 and 1,260.91

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Solution

The fourth proportional to 3,600.91, 5,401.41 and 1,260.91 is: 1,891.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,600.91 : 5,401.41 = 1,260.91 : x
  2. Step 2: Convert to fraction form
    3,600.91/5,401.41 = 1,260.91/x
  3. Step 3: Cross multiply
    3,600.91x = 5,401.41 × 1,260.91
  4. Step 4: Simplify right side
    3,600.91x = 6,810,691.88
  5. Step 5: Solve for x
    x = 6,810,691.88/3,600.91
  6. Step 6: Final answer
    x = 1,891.38

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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.