Home / 3,939,772-5,436,968.46-2,220,892.48

Finding the Fourth Proportional to 3,939,772, 5,436,968.46 and 2,220,892.48

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Solution

The fourth proportional to 3,939,772, 5,436,968.46 and 2,220,892.48 is: 3,064,878.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939,772 : 5,436,968.46 = 2,220,892.48 : x
  2. Step 2: Convert to fraction form
    3,939,772/5,436,968.46 = 2,220,892.48/x
  3. Step 3: Cross multiply
    3,939,772x = 5,436,968.46 × 2,220,892.48
  4. Step 4: Simplify right side
    3,939,772x = 12,074,922,366,811.18
  5. Step 5: Solve for x
    x = 12,074,922,366,811.18/3,939,772
  6. Step 6: Final answer
    x = 3,064,878.47

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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.