Home / 3,938.64-5,909.34-2,627.64

Finding the Fourth Proportional to 3,938.64, 5,909.34 and 2,627.64

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Solution

The fourth proportional to 3,938.64, 5,909.34 and 2,627.64 is: 3,942.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.64 : 5,909.34 = 2,627.64 : x
  2. Step 2: Convert to fraction form
    3,938.64/5,909.34 = 2,627.64/x
  3. Step 3: Cross multiply
    3,938.64x = 5,909.34 × 2,627.64
  4. Step 4: Simplify right side
    3,938.64x = 15,527,618.16
  5. Step 5: Solve for x
    x = 15,527,618.16/3,938.64
  6. Step 6: Final answer
    x = 3,942.38

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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.