Home / 3,003.24-4,505.09-811.98

Finding the Fourth Proportional to 3,003.24, 4,505.09 and 811.98

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Solution

The fourth proportional to 3,003.24, 4,505.09 and 811.98 is: 1,218.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,003.24 : 4,505.09 = 811.98 : x
  2. Step 2: Convert to fraction form
    3,003.24/4,505.09 = 811.98/x
  3. Step 3: Cross multiply
    3,003.24x = 4,505.09 × 811.98
  4. Step 4: Simplify right side
    3,003.24x = 3,658,016.39
  5. Step 5: Solve for x
    x = 3,658,016.39/3,003.24
  6. Step 6: Final answer
    x = 1,218.03

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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.