Home / 3,898,165.84-5,379,480.80-2,179,286.32

Finding the Fourth Proportional to 3,898,165.84, 5,379,480.80 and 2,179,286.32

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Solution

The fourth proportional to 3,898,165.84, 5,379,480.80 and 2,179,286.32 is: 3,007,421.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,898,165.84 : 5,379,480.80 = 2,179,286.32 : x
  2. Step 2: Convert to fraction form
    3,898,165.84/5,379,480.80 = 2,179,286.32/x
  3. Step 3: Cross multiply
    3,898,165.84x = 5,379,480.80 × 2,179,286.32
  4. Step 4: Simplify right side
    3,898,165.84x = 11,723,428,916,142.65
  5. Step 5: Solve for x
    x = 11,723,428,916,142.65/3,898,165.84
  6. Step 6: Final answer
    x = 3,007,421.80

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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.