Home / 2,939.70-4,409.91-1,296.66

Finding the Fourth Proportional to 2,939.70, 4,409.91 and 1,296.66

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Solution

The fourth proportional to 2,939.70, 4,409.91 and 1,296.66 is: 1,945.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.70 : 4,409.91 = 1,296.66 : x
  2. Step 2: Convert to fraction form
    2,939.70/4,409.91 = 1,296.66/x
  3. Step 3: Cross multiply
    2,939.70x = 4,409.91 × 1,296.66
  4. Step 4: Simplify right side
    2,939.70x = 5,718,153.90
  5. Step 5: Solve for x
    x = 5,718,153.90/2,939.70
  6. Step 6: Final answer
    x = 1,945.15

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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.