Home / 7,447.26-11,170.88-1,900.60

Finding the Fourth Proportional to 7,447.26, 11,170.88 and 1,900.60

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Solution

The fourth proportional to 7,447.26, 11,170.88 and 1,900.60 is: 2,850.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,447.26 : 11,170.88 = 1,900.60 : x
  2. Step 2: Convert to fraction form
    7,447.26/11,170.88 = 1,900.60/x
  3. Step 3: Cross multiply
    7,447.26x = 11,170.88 × 1,900.60
  4. Step 4: Simplify right side
    7,447.26x = 21,231,416.42
  5. Step 5: Solve for x
    x = 21,231,416.42/7,447.26
  6. Step 6: Final answer
    x = 2,850.90

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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.