Home / 3,680,937.81-5,078,379.42-2,131,353.72

Finding the Fourth Proportional to 3,680,937.81, 5,078,379.42 and 2,131,353.72

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Solution

The fourth proportional to 3,680,937.81, 5,078,379.42 and 2,131,353.72 is: 2,940,506.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,680,937.81 : 5,078,379.42 = 2,131,353.72 : x
  2. Step 2: Convert to fraction form
    3,680,937.81/5,078,379.42 = 2,131,353.72/x
  3. Step 3: Cross multiply
    3,680,937.81x = 5,078,379.42 × 2,131,353.72
  4. Step 4: Simplify right side
    3,680,937.81x = 10,823,822,868,388.44
  5. Step 5: Solve for x
    x = 10,823,822,868,388.44/3,680,937.81
  6. Step 6: Final answer
    x = 2,940,506.86

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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.