Home / 3,859.56-5,325.62-2,180.87

Finding the Fourth Proportional to 3,859.56, 5,325.62 and 2,180.87

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Solution

The fourth proportional to 3,859.56, 5,325.62 and 2,180.87 is: 3,009.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859.56 : 5,325.62 = 2,180.87 : x
  2. Step 2: Convert to fraction form
    3,859.56/5,325.62 = 2,180.87/x
  3. Step 3: Cross multiply
    3,859.56x = 5,325.62 × 2,180.87
  4. Step 4: Simplify right side
    3,859.56x = 11,614,467.33
  5. Step 5: Solve for x
    x = 11,614,467.33/3,859.56
  6. Step 6: Final answer
    x = 3,009.27

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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.