Home / 5,455.28-8,182.68-1,992.56

Finding the Fourth Proportional to 5,455.28, 8,182.68 and 1,992.56

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Solution

The fourth proportional to 5,455.28, 8,182.68 and 1,992.56 is: 2,988.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,455.28 : 8,182.68 = 1,992.56 : x
  2. Step 2: Convert to fraction form
    5,455.28/8,182.68 = 1,992.56/x
  3. Step 3: Cross multiply
    5,455.28x = 8,182.68 × 1,992.56
  4. Step 4: Simplify right side
    5,455.28x = 16,304,480.86
  5. Step 5: Solve for x
    x = 16,304,480.86/5,455.28
  6. Step 6: Final answer
    x = 2,988.75

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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.