Home / 2,136.18-3,204.60-675.12

Finding the Fourth Proportional to 2,136.18, 3,204.60 and 675.12

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Solution

The fourth proportional to 2,136.18, 3,204.60 and 675.12 is: 1,012.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.18 : 3,204.60 = 675.12 : x
  2. Step 2: Convert to fraction form
    2,136.18/3,204.60 = 675.12/x
  3. Step 3: Cross multiply
    2,136.18x = 3,204.60 × 675.12
  4. Step 4: Simplify right side
    2,136.18x = 2,163,489.55
  5. Step 5: Solve for x
    x = 2,163,489.55/2,136.18
  6. Step 6: Final answer
    x = 1,012.78

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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.