Home / 3,978,763.75-5,490,694.04-2,167,927.75

Finding the Fourth Proportional to 3,978,763.75, 5,490,694.04 and 2,167,927.75

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Solution

The fourth proportional to 3,978,763.75, 5,490,694.04 and 2,167,927.75 is: 2,991,740.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,978,763.75 : 5,490,694.04 = 2,167,927.75 : x
  2. Step 2: Convert to fraction form
    3,978,763.75/5,490,694.04 = 2,167,927.75/x
  3. Step 3: Cross multiply
    3,978,763.75x = 5,490,694.04 × 2,167,927.75
  4. Step 4: Simplify right side
    3,978,763.75x = 11,903,427,976,075.61
  5. Step 5: Solve for x
    x = 11,903,427,976,075.61/3,978,763.75
  6. Step 6: Final answer
    x = 2,991,740.33

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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.