Home / 3,633.90-5,450.85-1,324.86

Finding the Fourth Proportional to 3,633.90, 5,450.85 and 1,324.86

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Solution

The fourth proportional to 3,633.90, 5,450.85 and 1,324.86 is: 1,987.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,633.90 : 5,450.85 = 1,324.86 : x
  2. Step 2: Convert to fraction form
    3,633.90/5,450.85 = 1,324.86/x
  3. Step 3: Cross multiply
    3,633.90x = 5,450.85 × 1,324.86
  4. Step 4: Simplify right side
    3,633.90x = 7,221,613.13
  5. Step 5: Solve for x
    x = 7,221,613.13/3,633.90
  6. Step 6: Final answer
    x = 1,987.29

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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.