Home / 3,938,797.20-5,435,555-2,489,136.88

Finding the Fourth Proportional to 3,938,797.20, 5,435,555 and 2,489,136.88

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Solution

The fourth proportional to 3,938,797.20, 5,435,555 and 2,489,136.88 is: 3,435,018.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938,797.20 : 5,435,555 = 2,489,136.88 : x
  2. Step 2: Convert to fraction form
    3,938,797.20/5,435,555 = 2,489,136.88/x
  3. Step 3: Cross multiply
    3,938,797.20x = 5,435,555 × 2,489,136.88
  4. Step 4: Simplify right side
    3,938,797.20x = 13,529,840,413,768.40
  5. Step 5: Solve for x
    x = 13,529,840,413,768.40/3,938,797.20
  6. Step 6: Final answer
    x = 3,435,018.29

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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.