Home / 3,903,722.51-5,387,305.44-2,161,391.90

Finding the Fourth Proportional to 3,903,722.51, 5,387,305.44 and 2,161,391.90

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Solution

The fourth proportional to 3,903,722.51, 5,387,305.44 and 2,161,391.90 is: 2,982,814.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903,722.51 : 5,387,305.44 = 2,161,391.90 : x
  2. Step 2: Convert to fraction form
    3,903,722.51/5,387,305.44 = 2,161,391.90/x
  3. Step 3: Cross multiply
    3,903,722.51x = 5,387,305.44 × 2,161,391.90
  4. Step 4: Simplify right side
    3,903,722.51x = 11,644,078,313,905.41
  5. Step 5: Solve for x
    x = 11,644,078,313,905.41/3,903,722.51
  6. Step 6: Final answer
    x = 2,982,814.04

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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.