Home / 3,422.45-5,133.68-1,229.60

Finding the Fourth Proportional to 3,422.45, 5,133.68 and 1,229.60

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Solution

The fourth proportional to 3,422.45, 5,133.68 and 1,229.60 is: 1,844.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,422.45 : 5,133.68 = 1,229.60 : x
  2. Step 2: Convert to fraction form
    3,422.45/5,133.68 = 1,229.60/x
  3. Step 3: Cross multiply
    3,422.45x = 5,133.68 × 1,229.60
  4. Step 4: Simplify right side
    3,422.45x = 6,312,372.93
  5. Step 5: Solve for x
    x = 6,312,372.93/3,422.45
  6. Step 6: Final answer
    x = 1,844.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.