Home / 3,201.26-4,419.78-2,613.20

Finding the Fourth Proportional to 3,201.26, 4,419.78 and 2,613.20

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Solution

The fourth proportional to 3,201.26, 4,419.78 and 2,613.20 is: 3,607.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,201.26 : 4,419.78 = 2,613.20 : x
  2. Step 2: Convert to fraction form
    3,201.26/4,419.78 = 2,613.20/x
  3. Step 3: Cross multiply
    3,201.26x = 4,419.78 × 2,613.20
  4. Step 4: Simplify right side
    3,201.26x = 11,549,769.10
  5. Step 5: Solve for x
    x = 11,549,769.10/3,201.26
  6. Step 6: Final answer
    x = 3,607.88

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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.