Home / 4,785.48-7,175.79-2,187

Finding the Fourth Proportional to 4,785.48, 7,175.79 and 2,187

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Solution

The fourth proportional to 4,785.48, 7,175.79 and 2,187 is: 3,279.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,785.48 : 7,175.79 = 2,187 : x
  2. Step 2: Convert to fraction form
    4,785.48/7,175.79 = 2,187/x
  3. Step 3: Cross multiply
    4,785.48x = 7,175.79 × 2,187
  4. Step 4: Simplify right side
    4,785.48x = 15,693,452.73
  5. Step 5: Solve for x
    x = 15,693,452.73/4,785.48
  6. Step 6: Final answer
    x = 3,279.39

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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.