Home / 3,579,081-4,939,131.78-1,969,449

Finding the Fourth Proportional to 3,579,081, 4,939,131.78 and 1,969,449

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Solution

The fourth proportional to 3,579,081, 4,939,131.78 and 1,969,449 is: 2,717,839.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579,081 : 4,939,131.78 = 1,969,449 : x
  2. Step 2: Convert to fraction form
    3,579,081/4,939,131.78 = 1,969,449/x
  3. Step 3: Cross multiply
    3,579,081x = 4,939,131.78 × 1,969,449
  4. Step 4: Simplify right side
    3,579,081x = 9,727,368,144,989.22
  5. Step 5: Solve for x
    x = 9,727,368,144,989.22/3,579,081
  6. Step 6: Final answer
    x = 2,717,839.62

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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.