Home / 5,198.28-7,179.58-3,788.30

Finding the Fourth Proportional to 5,198.28, 7,179.58 and 3,788.30

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Solution

The fourth proportional to 5,198.28, 7,179.58 and 3,788.30 is: 5,232.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,198.28 : 7,179.58 = 3,788.30 : x
  2. Step 2: Convert to fraction form
    5,198.28/7,179.58 = 3,788.30/x
  3. Step 3: Cross multiply
    5,198.28x = 7,179.58 × 3,788.30
  4. Step 4: Simplify right side
    5,198.28x = 27,198,402.91
  5. Step 5: Solve for x
    x = 27,198,402.91/5,198.28
  6. Step 6: Final answer
    x = 5,232.19

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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.