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Finding the Fourth Proportional to 5,423.46, 8,137.46 and 3,873.42

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Solution

The fourth proportional to 5,423.46, 8,137.46 and 3,873.42 is: 5,811.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,423.46 : 8,137.46 = 3,873.42 : x
  2. Step 2: Convert to fraction form
    5,423.46/8,137.46 = 3,873.42/x
  3. Step 3: Cross multiply
    5,423.46x = 8,137.46 × 3,873.42
  4. Step 4: Simplify right side
    5,423.46x = 31,519,810.00
  5. Step 5: Solve for x
    x = 31,519,810.00/5,423.46
  6. Step 6: Final answer
    x = 5,811.76

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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.