Home / 3,857.22-5,321.07-2,284.56

Finding the Fourth Proportional to 3,857.22, 5,321.07 and 2,284.56

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Solution

The fourth proportional to 3,857.22, 5,321.07 and 2,284.56 is: 3,151.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,857.22 : 5,321.07 = 2,284.56 : x
  2. Step 2: Convert to fraction form
    3,857.22/5,321.07 = 2,284.56/x
  3. Step 3: Cross multiply
    3,857.22x = 5,321.07 × 2,284.56
  4. Step 4: Simplify right side
    3,857.22x = 12,156,303.68
  5. Step 5: Solve for x
    x = 12,156,303.68/3,857.22
  6. Step 6: Final answer
    x = 3,151.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.