Home / 3,978,750.35-5,490,675.54-2,167,914.35

Finding the Fourth Proportional to 3,978,750.35, 5,490,675.54 and 2,167,914.35

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Solution

The fourth proportional to 3,978,750.35, 5,490,675.54 and 2,167,914.35 is: 2,991,721.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,978,750.35 : 5,490,675.54 = 2,167,914.35 : x
  2. Step 2: Convert to fraction form
    3,978,750.35/5,490,675.54 = 2,167,914.35/x
  3. Step 3: Cross multiply
    3,978,750.35x = 5,490,675.54 × 2,167,914.35
  4. Step 4: Simplify right side
    3,978,750.35x = 11,903,314,283,520.43
  5. Step 5: Solve for x
    x = 11,903,314,283,520.43/3,978,750.35
  6. Step 6: Final answer
    x = 2,991,721.83

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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.