Home / 4,914.28-7,371.92-1,992.84

Finding the Fourth Proportional to 4,914.28, 7,371.92 and 1,992.84

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Solution

The fourth proportional to 4,914.28, 7,371.92 and 1,992.84 is: 2,989.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,914.28 : 7,371.92 = 1,992.84 : x
  2. Step 2: Convert to fraction form
    4,914.28/7,371.92 = 1,992.84/x
  3. Step 3: Cross multiply
    4,914.28x = 7,371.92 × 1,992.84
  4. Step 4: Simplify right side
    4,914.28x = 14,691,057.05
  5. Step 5: Solve for x
    x = 14,691,057.05/4,914.28
  6. Step 6: Final answer
    x = 2,989.46

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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.