Home / 3,878,996.68-5,353,137.16-2,136,792.39

Finding the Fourth Proportional to 3,878,996.68, 5,353,137.16 and 2,136,792.39

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Solution

The fourth proportional to 3,878,996.68, 5,353,137.16 and 2,136,792.39 is: 2,948,840.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878,996.68 : 5,353,137.16 = 2,136,792.39 : x
  2. Step 2: Convert to fraction form
    3,878,996.68/5,353,137.16 = 2,136,792.39/x
  3. Step 3: Cross multiply
    3,878,996.68x = 5,353,137.16 × 2,136,792.39
  4. Step 4: Simplify right side
    3,878,996.68x = 11,438,542,732,717.42
  5. Step 5: Solve for x
    x = 11,438,542,732,717.42/3,878,996.68
  6. Step 6: Final answer
    x = 2,948,840.56

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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.