Home / 5,072.96-7,608.97-1,785.88

Finding the Fourth Proportional to 5,072.96, 7,608.97 and 1,785.88

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Solution

The fourth proportional to 5,072.96, 7,608.97 and 1,785.88 is: 2,678.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,072.96 : 7,608.97 = 1,785.88 : x
  2. Step 2: Convert to fraction form
    5,072.96/7,608.97 = 1,785.88/x
  3. Step 3: Cross multiply
    5,072.96x = 7,608.97 × 1,785.88
  4. Step 4: Simplify right side
    5,072.96x = 13,588,719.09
  5. Step 5: Solve for x
    x = 13,588,719.09/5,072.96
  6. Step 6: Final answer
    x = 2,678.66

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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.