Home / 2,480.37-3,720.29-1,247.27

Finding the Fourth Proportional to 2,480.37, 3,720.29 and 1,247.27

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Solution

The fourth proportional to 2,480.37, 3,720.29 and 1,247.27 is: 1,870.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,480.37 : 3,720.29 = 1,247.27 : x
  2. Step 2: Convert to fraction form
    2,480.37/3,720.29 = 1,247.27/x
  3. Step 3: Cross multiply
    2,480.37x = 3,720.29 × 1,247.27
  4. Step 4: Simplify right side
    2,480.37x = 4,640,221.43
  5. Step 5: Solve for x
    x = 4,640,221.43/2,480.37
  6. Step 6: Final answer
    x = 1,870.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.