Home / 2,136.42-3,205.30-1,040.86

Finding the Fourth Proportional to 2,136.42, 3,205.30 and 1,040.86

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Solution

The fourth proportional to 2,136.42, 3,205.30 and 1,040.86 is: 1,561.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.42 : 3,205.30 = 1,040.86 : x
  2. Step 2: Convert to fraction form
    2,136.42/3,205.30 = 1,040.86/x
  3. Step 3: Cross multiply
    2,136.42x = 3,205.30 × 1,040.86
  4. Step 4: Simplify right side
    2,136.42x = 3,336,268.56
  5. Step 5: Solve for x
    x = 3,336,268.56/2,136.42
  6. Step 6: Final answer
    x = 1,561.62

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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.