Home / 3,789.98-5,685.80-1,157.72

Finding the Fourth Proportional to 3,789.98, 5,685.80 and 1,157.72

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Solution

The fourth proportional to 3,789.98, 5,685.80 and 1,157.72 is: 1,736.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,789.98 : 5,685.80 = 1,157.72 : x
  2. Step 2: Convert to fraction form
    3,789.98/5,685.80 = 1,157.72/x
  3. Step 3: Cross multiply
    3,789.98x = 5,685.80 × 1,157.72
  4. Step 4: Simplify right side
    3,789.98x = 6,582,564.38
  5. Step 5: Solve for x
    x = 6,582,564.38/3,789.98
  6. Step 6: Final answer
    x = 1,736.83

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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.