Home / 5,404.20-8,090.10-3,211.80

Finding the Fourth Proportional to 5,404.20, 8,090.10 and 3,211.80

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Solution

The fourth proportional to 5,404.20, 8,090.10 and 3,211.80 is: 4,808.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,404.20 : 8,090.10 = 3,211.80 : x
  2. Step 2: Convert to fraction form
    5,404.20/8,090.10 = 3,211.80/x
  3. Step 3: Cross multiply
    5,404.20x = 8,090.10 × 3,211.80
  4. Step 4: Simplify right side
    5,404.20x = 25,983,783.18
  5. Step 5: Solve for x
    x = 25,983,783.18/5,404.20
  6. Step 6: Final answer
    x = 4,808.07

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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.