Home / 2,195.53-3,286.26-1,538.21

Finding the Fourth Proportional to 2,195.53, 3,286.26 and 1,538.21

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Solution

The fourth proportional to 2,195.53, 3,286.26 and 1,538.21 is: 2,302.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,195.53 : 3,286.26 = 1,538.21 : x
  2. Step 2: Convert to fraction form
    2,195.53/3,286.26 = 1,538.21/x
  3. Step 3: Cross multiply
    2,195.53x = 3,286.26 × 1,538.21
  4. Step 4: Simplify right side
    2,195.53x = 5,054,957.99
  5. Step 5: Solve for x
    x = 5,054,957.99/2,195.53
  6. Step 6: Final answer
    x = 2,302.39

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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.