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Finding the Fourth Proportional to 3,690.80, 5,536.26 and 1,093.74

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Solution

The fourth proportional to 3,690.80, 5,536.26 and 1,093.74 is: 1,640.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,690.80 : 5,536.26 = 1,093.74 : x
  2. Step 2: Convert to fraction form
    3,690.80/5,536.26 = 1,093.74/x
  3. Step 3: Cross multiply
    3,690.80x = 5,536.26 × 1,093.74
  4. Step 4: Simplify right side
    3,690.80x = 6,055,229.01
  5. Step 5: Solve for x
    x = 6,055,229.01/3,690.80
  6. Step 6: Final answer
    x = 1,640.63

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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.