Home / 3,783.28-5,674.56-1,186

Finding the Fourth Proportional to 3,783.28, 5,674.56 and 1,186

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Solution

The fourth proportional to 3,783.28, 5,674.56 and 1,186 is: 1,778.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,783.28 : 5,674.56 = 1,186 : x
  2. Step 2: Convert to fraction form
    3,783.28/5,674.56 = 1,186/x
  3. Step 3: Cross multiply
    3,783.28x = 5,674.56 × 1,186
  4. Step 4: Simplify right side
    3,783.28x = 6,730,028.16
  5. Step 5: Solve for x
    x = 6,730,028.16/3,783.28
  6. Step 6: Final answer
    x = 1,778.89

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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.