Home / 4,000.28-5,520.39-2,231.99

Finding the Fourth Proportional to 4,000.28, 5,520.39 and 2,231.99

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Solution

The fourth proportional to 4,000.28, 5,520.39 and 2,231.99 is: 3,080.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,000.28 : 5,520.39 = 2,231.99 : x
  2. Step 2: Convert to fraction form
    4,000.28/5,520.39 = 2,231.99/x
  3. Step 3: Cross multiply
    4,000.28x = 5,520.39 × 2,231.99
  4. Step 4: Simplify right side
    4,000.28x = 12,321,427.67
  5. Step 5: Solve for x
    x = 12,321,427.67/4,000.28
  6. Step 6: Final answer
    x = 3,080.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.