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Finding the Fourth Proportional to 3,926.88, 5,877.36 and 3,494.88

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Solution

The fourth proportional to 3,926.88, 5,877.36 and 3,494.88 is: 5,230.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,926.88 : 5,877.36 = 3,494.88 : x
  2. Step 2: Convert to fraction form
    3,926.88/5,877.36 = 3,494.88/x
  3. Step 3: Cross multiply
    3,926.88x = 5,877.36 × 3,494.88
  4. Step 4: Simplify right side
    3,926.88x = 20,540,667.92
  5. Step 5: Solve for x
    x = 20,540,667.92/3,926.88
  6. Step 6: Final answer
    x = 5,230.79

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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.