Home / 3,954,978-5,457,869.64-2,144,142

Finding the Fourth Proportional to 3,954,978, 5,457,869.64 and 2,144,142

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Solution

The fourth proportional to 3,954,978, 5,457,869.64 and 2,144,142 is: 2,958,915.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,954,978 : 5,457,869.64 = 2,144,142 : x
  2. Step 2: Convert to fraction form
    3,954,978/5,457,869.64 = 2,144,142/x
  3. Step 3: Cross multiply
    3,954,978x = 5,457,869.64 × 2,144,142
  4. Step 4: Simplify right side
    3,954,978x = 11,702,447,525,648.88
  5. Step 5: Solve for x
    x = 11,702,447,525,648.88/3,954,978
  6. Step 6: Final answer
    x = 2,958,915.96

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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.