Home / 2,649.23-3,976.62-1,956.68

Finding the Fourth Proportional to 2,649.23, 3,976.62 and 1,956.68

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Solution

The fourth proportional to 2,649.23, 3,976.62 and 1,956.68 is: 2,937.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,649.23 : 3,976.62 = 1,956.68 : x
  2. Step 2: Convert to fraction form
    2,649.23/3,976.62 = 1,956.68/x
  3. Step 3: Cross multiply
    2,649.23x = 3,976.62 × 1,956.68
  4. Step 4: Simplify right side
    2,649.23x = 7,780,975.43
  5. Step 5: Solve for x
    x = 7,780,975.43/2,649.23
  6. Step 6: Final answer
    x = 2,937.07

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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.