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Finding the Fourth Proportional to 7,423.56, 10,245 and 4,279.95

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Solution

The fourth proportional to 7,423.56, 10,245 and 4,279.95 is: 5,906.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,423.56 : 10,245 = 4,279.95 : x
  2. Step 2: Convert to fraction form
    7,423.56/10,245 = 4,279.95/x
  3. Step 3: Cross multiply
    7,423.56x = 10,245 × 4,279.95
  4. Step 4: Simplify right side
    7,423.56x = 43,848,087.75
  5. Step 5: Solve for x
    x = 43,848,087.75/7,423.56
  6. Step 6: Final answer
    x = 5,906.61

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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.