Home / 3,938.56-5,435.04-2,282.88

Finding the Fourth Proportional to 3,938.56, 5,435.04 and 2,282.88

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Solution

The fourth proportional to 3,938.56, 5,435.04 and 2,282.88 is: 3,150.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.56 : 5,435.04 = 2,282.88 : x
  2. Step 2: Convert to fraction form
    3,938.56/5,435.04 = 2,282.88/x
  3. Step 3: Cross multiply
    3,938.56x = 5,435.04 × 2,282.88
  4. Step 4: Simplify right side
    3,938.56x = 12,407,544.12
  5. Step 5: Solve for x
    x = 12,407,544.12/3,938.56
  6. Step 6: Final answer
    x = 3,150.27

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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.