Home / 3,765.60-5,201.48-2,892.20

Finding the Fourth Proportional to 3,765.60, 5,201.48 and 2,892.20

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Solution

The fourth proportional to 3,765.60, 5,201.48 and 2,892.20 is: 3,995.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,765.60 : 5,201.48 = 2,892.20 : x
  2. Step 2: Convert to fraction form
    3,765.60/5,201.48 = 2,892.20/x
  3. Step 3: Cross multiply
    3,765.60x = 5,201.48 × 2,892.20
  4. Step 4: Simplify right side
    3,765.60x = 15,043,701.68
  5. Step 5: Solve for x
    x = 15,043,701.68/3,765.60
  6. Step 6: Final answer
    x = 3,995.03

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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.