Home / 5,540.30-8,310.80-2,621.42

Finding the Fourth Proportional to 5,540.30, 8,310.80 and 2,621.42

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Solution

The fourth proportional to 5,540.30, 8,310.80 and 2,621.42 is: 3,932.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,540.30 : 8,310.80 = 2,621.42 : x
  2. Step 2: Convert to fraction form
    5,540.30/8,310.80 = 2,621.42/x
  3. Step 3: Cross multiply
    5,540.30x = 8,310.80 × 2,621.42
  4. Step 4: Simplify right side
    5,540.30x = 21,786,097.34
  5. Step 5: Solve for x
    x = 21,786,097.34/5,540.30
  6. Step 6: Final answer
    x = 3,932.30

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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.