Home / 3,783.62-5,675.96-1,318.08

Finding the Fourth Proportional to 3,783.62, 5,675.96 and 1,318.08

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Solution

The fourth proportional to 3,783.62, 5,675.96 and 1,318.08 is: 1,977.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,783.62 : 5,675.96 = 1,318.08 : x
  2. Step 2: Convert to fraction form
    3,783.62/5,675.96 = 1,318.08/x
  3. Step 3: Cross multiply
    3,783.62x = 5,675.96 × 1,318.08
  4. Step 4: Simplify right side
    3,783.62x = 7,481,334.39
  5. Step 5: Solve for x
    x = 7,481,334.39/3,783.62
  6. Step 6: Final answer
    x = 1,977.30

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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.