Home / 5,441.52-8,163.72-1,979.12

Finding the Fourth Proportional to 5,441.52, 8,163.72 and 1,979.12

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Solution

The fourth proportional to 5,441.52, 8,163.72 and 1,979.12 is: 2,969.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,441.52 : 8,163.72 = 1,979.12 : x
  2. Step 2: Convert to fraction form
    5,441.52/8,163.72 = 1,979.12/x
  3. Step 3: Cross multiply
    5,441.52x = 8,163.72 × 1,979.12
  4. Step 4: Simplify right side
    5,441.52x = 16,156,981.53
  5. Step 5: Solve for x
    x = 16,156,981.53/5,441.52
  6. Step 6: Final answer
    x = 2,969.20

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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.