Home / 3,783.49-5,676.26-1,318.45

Finding the Fourth Proportional to 3,783.49, 5,676.26 and 1,318.45

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Solution

The fourth proportional to 3,783.49, 5,676.26 and 1,318.45 is: 1,978.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,783.49 : 5,676.26 = 1,318.45 : x
  2. Step 2: Convert to fraction form
    3,783.49/5,676.26 = 1,318.45/x
  3. Step 3: Cross multiply
    3,783.49x = 5,676.26 × 1,318.45
  4. Step 4: Simplify right side
    3,783.49x = 7,483,865.00
  5. Step 5: Solve for x
    x = 7,483,865.00/3,783.49
  6. Step 6: Final answer
    x = 1,978.03

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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.