Home / 3,894.22-5,841.87-1,121.05

Finding the Fourth Proportional to 3,894.22, 5,841.87 and 1,121.05

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Solution

The fourth proportional to 3,894.22, 5,841.87 and 1,121.05 is: 1,681.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,894.22 : 5,841.87 = 1,121.05 : x
  2. Step 2: Convert to fraction form
    3,894.22/5,841.87 = 1,121.05/x
  3. Step 3: Cross multiply
    3,894.22x = 5,841.87 × 1,121.05
  4. Step 4: Simplify right side
    3,894.22x = 6,549,028.36
  5. Step 5: Solve for x
    x = 6,549,028.36/3,894.22
  6. Step 6: Final answer
    x = 1,681.73

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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.