Home / 3,669.12-5,499.36-1,936.80

Finding the Fourth Proportional to 3,669.12, 5,499.36 and 1,936.80

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Solution

The fourth proportional to 3,669.12, 5,499.36 and 1,936.80 is: 2,902.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,669.12 : 5,499.36 = 1,936.80 : x
  2. Step 2: Convert to fraction form
    3,669.12/5,499.36 = 1,936.80/x
  3. Step 3: Cross multiply
    3,669.12x = 5,499.36 × 1,936.80
  4. Step 4: Simplify right side
    3,669.12x = 10,651,160.45
  5. Step 5: Solve for x
    x = 10,651,160.45/3,669.12
  6. Step 6: Final answer
    x = 2,902.92

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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.