Home / 5,418.60-8,127.90-3,226.20

Finding the Fourth Proportional to 5,418.60, 8,127.90 and 3,226.20

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Solution

The fourth proportional to 5,418.60, 8,127.90 and 3,226.20 is: 4,839.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.60 : 8,127.90 = 3,226.20 : x
  2. Step 2: Convert to fraction form
    5,418.60/8,127.90 = 3,226.20/x
  3. Step 3: Cross multiply
    5,418.60x = 8,127.90 × 3,226.20
  4. Step 4: Simplify right side
    5,418.60x = 26,222,230.98
  5. Step 5: Solve for x
    x = 26,222,230.98/5,418.60
  6. Step 6: Final answer
    x = 4,839.30

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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.