Home / 3,630.26-5,445.37-1,321.76

Finding the Fourth Proportional to 3,630.26, 5,445.37 and 1,321.76

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Solution

The fourth proportional to 3,630.26, 5,445.37 and 1,321.76 is: 1,982.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,630.26 : 5,445.37 = 1,321.76 : x
  2. Step 2: Convert to fraction form
    3,630.26/5,445.37 = 1,321.76/x
  3. Step 3: Cross multiply
    3,630.26x = 5,445.37 × 1,321.76
  4. Step 4: Simplify right side
    3,630.26x = 7,197,472.25
  5. Step 5: Solve for x
    x = 7,197,472.25/3,630.26
  6. Step 6: Final answer
    x = 1,982.63

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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.