Home / 2,136.28-3,205.37-904.54

Finding the Fourth Proportional to 2,136.28, 3,205.37 and 904.54

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Solution

The fourth proportional to 2,136.28, 3,205.37 and 904.54 is: 1,357.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.28 : 3,205.37 = 904.54 : x
  2. Step 2: Convert to fraction form
    2,136.28/3,205.37 = 904.54/x
  3. Step 3: Cross multiply
    2,136.28x = 3,205.37 × 904.54
  4. Step 4: Simplify right side
    2,136.28x = 2,899,385.38
  5. Step 5: Solve for x
    x = 2,899,385.38/2,136.28
  6. Step 6: Final answer
    x = 1,357.21

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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.