Home / 3,879.52-5,820.26-1,247.27

Finding the Fourth Proportional to 3,879.52, 5,820.26 and 1,247.27

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Solution

The fourth proportional to 3,879.52, 5,820.26 and 1,247.27 is: 1,871.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,879.52 : 5,820.26 = 1,247.27 : x
  2. Step 2: Convert to fraction form
    3,879.52/5,820.26 = 1,247.27/x
  3. Step 3: Cross multiply
    3,879.52x = 5,820.26 × 1,247.27
  4. Step 4: Simplify right side
    3,879.52x = 7,259,400.35
  5. Step 5: Solve for x
    x = 7,259,400.35/3,879.52
  6. Step 6: Final answer
    x = 1,871.21

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1.5x scale

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.