Home / 2,842.29-4,260.60-1,974.78

Finding the Fourth Proportional to 2,842.29, 4,260.60 and 1,974.78

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Solution

The fourth proportional to 2,842.29, 4,260.60 and 1,974.78 is: 2,960.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,842.29 : 4,260.60 = 1,974.78 : x
  2. Step 2: Convert to fraction form
    2,842.29/4,260.60 = 1,974.78/x
  3. Step 3: Cross multiply
    2,842.29x = 4,260.60 × 1,974.78
  4. Step 4: Simplify right side
    2,842.29x = 8,413,747.67
  5. Step 5: Solve for x
    x = 8,413,747.67/2,842.29
  6. Step 6: Final answer
    x = 2,960.20

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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.