Home / 3,859.22-5,325.69-2,180.60

Finding the Fourth Proportional to 3,859.22, 5,325.69 and 2,180.60

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Solution

The fourth proportional to 3,859.22, 5,325.69 and 2,180.60 is: 3,009.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859.22 : 5,325.69 = 2,180.60 : x
  2. Step 2: Convert to fraction form
    3,859.22/5,325.69 = 2,180.60/x
  3. Step 3: Cross multiply
    3,859.22x = 5,325.69 × 2,180.60
  4. Step 4: Simplify right side
    3,859.22x = 11,613,201.13
  5. Step 5: Solve for x
    x = 11,613,201.13/3,859.22
  6. Step 6: Final answer
    x = 3,009.21

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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.