Home / 5,408.20-8,112.30-4,484.80

Finding the Fourth Proportional to 5,408.20, 8,112.30 and 4,484.80

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Solution

The fourth proportional to 5,408.20, 8,112.30 and 4,484.80 is: 6,727.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,408.20 : 8,112.30 = 4,484.80 : x
  2. Step 2: Convert to fraction form
    5,408.20/8,112.30 = 4,484.80/x
  3. Step 3: Cross multiply
    5,408.20x = 8,112.30 × 4,484.80
  4. Step 4: Simplify right side
    5,408.20x = 36,382,043.04
  5. Step 5: Solve for x
    x = 36,382,043.04/5,408.20
  6. Step 6: Final answer
    x = 6,727.20

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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.