Home / 3,630.21-5,447.73-1,321.71

Finding the Fourth Proportional to 3,630.21, 5,447.73 and 1,321.71

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Solution

The fourth proportional to 3,630.21, 5,447.73 and 1,321.71 is: 1,983.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,630.21 : 5,447.73 = 1,321.71 : x
  2. Step 2: Convert to fraction form
    3,630.21/5,447.73 = 1,321.71/x
  3. Step 3: Cross multiply
    3,630.21x = 5,447.73 × 1,321.71
  4. Step 4: Simplify right side
    3,630.21x = 7,200,291.98
  5. Step 5: Solve for x
    x = 7,200,291.98/3,630.21
  6. Step 6: Final answer
    x = 1,983.44

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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.