Home / 3,820.32-5,270.96-2,141.60

Finding the Fourth Proportional to 3,820.32, 5,270.96 and 2,141.60

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Solution

The fourth proportional to 3,820.32, 5,270.96 and 2,141.60 is: 2,954.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,820.32 : 5,270.96 = 2,141.60 : x
  2. Step 2: Convert to fraction form
    3,820.32/5,270.96 = 2,141.60/x
  3. Step 3: Cross multiply
    3,820.32x = 5,270.96 × 2,141.60
  4. Step 4: Simplify right side
    3,820.32x = 11,288,287.94
  5. Step 5: Solve for x
    x = 11,288,287.94/3,820.32
  6. Step 6: Final answer
    x = 2,954.80

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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.