Home / 3,220.14-4,448.34-2,982

Finding the Fourth Proportional to 3,220.14, 4,448.34 and 2,982

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Solution

The fourth proportional to 3,220.14, 4,448.34 and 2,982 is: 4,119.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.14 : 4,448.34 = 2,982 : x
  2. Step 2: Convert to fraction form
    3,220.14/4,448.34 = 2,982/x
  3. Step 3: Cross multiply
    3,220.14x = 4,448.34 × 2,982
  4. Step 4: Simplify right side
    3,220.14x = 13,264,949.88
  5. Step 5: Solve for x
    x = 13,264,949.88/3,220.14
  6. Step 6: Final answer
    x = 4,119.37

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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.