Home / 3,938,348.43-5,434,786.46-2,172,316.73

Finding the Fourth Proportional to 3,938,348.43, 5,434,786.46 and 2,172,316.73

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Solution

The fourth proportional to 3,938,348.43, 5,434,786.46 and 2,172,316.73 is: 2,997,722.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938,348.43 : 5,434,786.46 = 2,172,316.73 : x
  2. Step 2: Convert to fraction form
    3,938,348.43/5,434,786.46 = 2,172,316.73/x
  3. Step 3: Cross multiply
    3,938,348.43x = 5,434,786.46 × 2,172,316.73
  4. Step 4: Simplify right side
    3,938,348.43x = 11,806,077,512,999.96
  5. Step 5: Solve for x
    x = 11,806,077,512,999.96/3,938,348.43
  6. Step 6: Final answer
    x = 2,997,722.96

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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.