Home / 4,480.20-6,720.30-2,406.60

Finding the Fourth Proportional to 4,480.20, 6,720.30 and 2,406.60

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Solution

The fourth proportional to 4,480.20, 6,720.30 and 2,406.60 is: 3,609.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,480.20 : 6,720.30 = 2,406.60 : x
  2. Step 2: Convert to fraction form
    4,480.20/6,720.30 = 2,406.60/x
  3. Step 3: Cross multiply
    4,480.20x = 6,720.30 × 2,406.60
  4. Step 4: Simplify right side
    4,480.20x = 16,173,073.98
  5. Step 5: Solve for x
    x = 16,173,073.98/4,480.20
  6. Step 6: Final answer
    x = 3,609.90

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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.