Home / 3,729.96-5,145.20-2,330.28

Finding the Fourth Proportional to 3,729.96, 5,145.20 and 2,330.28

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Solution

The fourth proportional to 3,729.96, 5,145.20 and 2,330.28 is: 3,214.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,729.96 : 5,145.20 = 2,330.28 : x
  2. Step 2: Convert to fraction form
    3,729.96/5,145.20 = 2,330.28/x
  3. Step 3: Cross multiply
    3,729.96x = 5,145.20 × 2,330.28
  4. Step 4: Simplify right side
    3,729.96x = 11,989,745.00
  5. Step 5: Solve for x
    x = 11,989,745.00/3,729.96
  6. Step 6: Final answer
    x = 3,214.44

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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.