Home / 3,180.03-4,388.97-2,187.57

Finding the Fourth Proportional to 3,180.03, 4,388.97 and 2,187.57

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Solution

The fourth proportional to 3,180.03, 4,388.97 and 2,187.57 is: 3,019.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.03 : 4,388.97 = 2,187.57 : x
  2. Step 2: Convert to fraction form
    3,180.03/4,388.97 = 2,187.57/x
  3. Step 3: Cross multiply
    3,180.03x = 4,388.97 × 2,187.57
  4. Step 4: Simplify right side
    3,180.03x = 9,601,179.10
  5. Step 5: Solve for x
    x = 9,601,179.10/3,180.03
  6. Step 6: Final answer
    x = 3,019.21

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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.