Home / 3,783.93-5,675.94-1,318.80

Finding the Fourth Proportional to 3,783.93, 5,675.94 and 1,318.80

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Solution

The fourth proportional to 3,783.93, 5,675.94 and 1,318.80 is: 1,978.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,783.93 : 5,675.94 = 1,318.80 : x
  2. Step 2: Convert to fraction form
    3,783.93/5,675.94 = 1,318.80/x
  3. Step 3: Cross multiply
    3,783.93x = 5,675.94 × 1,318.80
  4. Step 4: Simplify right side
    3,783.93x = 7,485,429.67
  5. Step 5: Solve for x
    x = 7,485,429.67/3,783.93
  6. Step 6: Final answer
    x = 1,978.22

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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.