Home / 3,980.36-5,491.41-2,467.23

Finding the Fourth Proportional to 3,980.36, 5,491.41 and 2,467.23

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Solution

The fourth proportional to 3,980.36, 5,491.41 and 2,467.23 is: 3,403.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,980.36 : 5,491.41 = 2,467.23 : x
  2. Step 2: Convert to fraction form
    3,980.36/5,491.41 = 2,467.23/x
  3. Step 3: Cross multiply
    3,980.36x = 5,491.41 × 2,467.23
  4. Step 4: Simplify right side
    3,980.36x = 13,548,582.83
  5. Step 5: Solve for x
    x = 13,548,582.83/3,980.36
  6. Step 6: Final answer
    x = 3,403.86

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1.5x scale

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.