Home / 2,021.75-3,033.05-634.98

Finding the Fourth Proportional to 2,021.75, 3,033.05 and 634.98

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Solution

The fourth proportional to 2,021.75, 3,033.05 and 634.98 is: 952.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021.75 : 3,033.05 = 634.98 : x
  2. Step 2: Convert to fraction form
    2,021.75/3,033.05 = 634.98/x
  3. Step 3: Cross multiply
    2,021.75x = 3,033.05 × 634.98
  4. Step 4: Simplify right side
    2,021.75x = 1,925,926.09
  5. Step 5: Solve for x
    x = 1,925,926.09/2,021.75
  6. Step 6: Final answer
    x = 952.60

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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.