Home / 3,003.42-4,504.97-811.99

Finding the Fourth Proportional to 3,003.42, 4,504.97 and 811.99

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Solution

The fourth proportional to 3,003.42, 4,504.97 and 811.99 is: 1,217.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,003.42 : 4,504.97 = 811.99 : x
  2. Step 2: Convert to fraction form
    3,003.42/4,504.97 = 811.99/x
  3. Step 3: Cross multiply
    3,003.42x = 4,504.97 × 811.99
  4. Step 4: Simplify right side
    3,003.42x = 3,657,986.53
  5. Step 5: Solve for x
    x = 3,657,986.53/3,003.42
  6. Step 6: Final answer
    x = 1,217.94

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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.