Home / 1,654.19-2,481.89-680.37

Finding the Fourth Proportional to 1,654.19, 2,481.89 and 680.37

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Solution

The fourth proportional to 1,654.19, 2,481.89 and 680.37 is: 1,020.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,654.19 : 2,481.89 = 680.37 : x
  2. Step 2: Convert to fraction form
    1,654.19/2,481.89 = 680.37/x
  3. Step 3: Cross multiply
    1,654.19x = 2,481.89 × 680.37
  4. Step 4: Simplify right side
    1,654.19x = 1,688,594.62
  5. Step 5: Solve for x
    x = 1,688,594.62/1,654.19
  6. Step 6: Final answer
    x = 1,020.80

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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.