Home / 3,938.09-5,429.52-3,227.32

Finding the Fourth Proportional to 3,938.09, 5,429.52 and 3,227.32

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Solution

The fourth proportional to 3,938.09, 5,429.52 and 3,227.32 is: 4,449.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.09 : 5,429.52 = 3,227.32 : x
  2. Step 2: Convert to fraction form
    3,938.09/5,429.52 = 3,227.32/x
  3. Step 3: Cross multiply
    3,938.09x = 5,429.52 × 3,227.32
  4. Step 4: Simplify right side
    3,938.09x = 17,522,798.49
  5. Step 5: Solve for x
    x = 17,522,798.49/3,938.09
  6. Step 6: Final answer
    x = 4,449.57

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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.