Home / 2,974.06-4,107.70-2,378.62

Finding the Fourth Proportional to 2,974.06, 4,107.70 and 2,378.62

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Solution

The fourth proportional to 2,974.06, 4,107.70 and 2,378.62 is: 3,285.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,974.06 : 4,107.70 = 2,378.62 : x
  2. Step 2: Convert to fraction form
    2,974.06/4,107.70 = 2,378.62/x
  3. Step 3: Cross multiply
    2,974.06x = 4,107.70 × 2,378.62
  4. Step 4: Simplify right side
    2,974.06x = 9,770,657.37
  5. Step 5: Solve for x
    x = 9,770,657.37/2,974.06
  6. Step 6: Final answer
    x = 3,285.29

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1.5x scale

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.