Home / 2,678.67-3,703.62-2,346.15

Finding the Fourth Proportional to 2,678.67, 3,703.62 and 2,346.15

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Solution

The fourth proportional to 2,678.67, 3,703.62 and 2,346.15 is: 3,243.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,678.67 : 3,703.62 = 2,346.15 : x
  2. Step 2: Convert to fraction form
    2,678.67/3,703.62 = 2,346.15/x
  3. Step 3: Cross multiply
    2,678.67x = 3,703.62 × 2,346.15
  4. Step 4: Simplify right side
    2,678.67x = 8,689,229.54
  5. Step 5: Solve for x
    x = 8,689,229.54/2,678.67
  6. Step 6: Final answer
    x = 3,243.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.