Home / 3,970.56-5,479.41-2,202.27

Finding the Fourth Proportional to 3,970.56, 5,479.41 and 2,202.27

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Solution

The fourth proportional to 3,970.56, 5,479.41 and 2,202.27 is: 3,039.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,970.56 : 5,479.41 = 2,202.27 : x
  2. Step 2: Convert to fraction form
    3,970.56/5,479.41 = 2,202.27/x
  3. Step 3: Cross multiply
    3,970.56x = 5,479.41 × 2,202.27
  4. Step 4: Simplify right side
    3,970.56x = 12,067,140.26
  5. Step 5: Solve for x
    x = 12,067,140.26/3,970.56
  6. Step 6: Final answer
    x = 3,039.15

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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.