Home / 2,136.50-3,205.16-982.25

Finding the Fourth Proportional to 2,136.50, 3,205.16 and 982.25

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Solution

The fourth proportional to 2,136.50, 3,205.16 and 982.25 is: 1,473.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.50 : 3,205.16 = 982.25 : x
  2. Step 2: Convert to fraction form
    2,136.50/3,205.16 = 982.25/x
  3. Step 3: Cross multiply
    2,136.50x = 3,205.16 × 982.25
  4. Step 4: Simplify right side
    2,136.50x = 3,148,268.41
  5. Step 5: Solve for x
    x = 3,148,268.41/2,136.50
  6. Step 6: Final answer
    x = 1,473.56

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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.