Home / 2,136.30-3,204.95-675.33

Finding the Fourth Proportional to 2,136.30, 3,204.95 and 675.33

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Solution

The fourth proportional to 2,136.30, 3,204.95 and 675.33 is: 1,013.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.30 : 3,204.95 = 675.33 : x
  2. Step 2: Convert to fraction form
    2,136.30/3,204.95 = 675.33/x
  3. Step 3: Cross multiply
    2,136.30x = 3,204.95 × 675.33
  4. Step 4: Simplify right side
    2,136.30x = 2,164,395.51
  5. Step 5: Solve for x
    x = 2,164,395.51/2,136.30
  6. Step 6: Final answer
    x = 1,013.15

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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.