Home / 3,784.20-5,676.59-1,187.13

Finding the Fourth Proportional to 3,784.20, 5,676.59 and 1,187.13

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Solution

The fourth proportional to 3,784.20, 5,676.59 and 1,187.13 is: 1,780.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,784.20 : 5,676.59 = 1,187.13 : x
  2. Step 2: Convert to fraction form
    3,784.20/5,676.59 = 1,187.13/x
  3. Step 3: Cross multiply
    3,784.20x = 5,676.59 × 1,187.13
  4. Step 4: Simplify right side
    3,784.20x = 6,738,850.29
  5. Step 5: Solve for x
    x = 6,738,850.29/3,784.20
  6. Step 6: Final answer
    x = 1,780.79

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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.