Home / 5,414.58-8,121.86-4,430.43

Finding the Fourth Proportional to 5,414.58, 8,121.86 and 4,430.43

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Solution

The fourth proportional to 5,414.58, 8,121.86 and 4,430.43 is: 6,645.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,414.58 : 8,121.86 = 4,430.43 : x
  2. Step 2: Convert to fraction form
    5,414.58/8,121.86 = 4,430.43/x
  3. Step 3: Cross multiply
    5,414.58x = 8,121.86 × 4,430.43
  4. Step 4: Simplify right side
    5,414.58x = 35,983,310.05
  5. Step 5: Solve for x
    x = 35,983,310.05/5,414.58
  6. Step 6: Final answer
    x = 6,645.63

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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.