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Finding the Fourth Proportional to 7,771.62, 10,724.82 and 4,234.82

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Solution

The fourth proportional to 7,771.62, 10,724.82 and 4,234.82 is: 5,844.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,771.62 : 10,724.82 = 4,234.82 : x
  2. Step 2: Convert to fraction form
    7,771.62/10,724.82 = 4,234.82/x
  3. Step 3: Cross multiply
    7,771.62x = 10,724.82 × 4,234.82
  4. Step 4: Simplify right side
    7,771.62x = 45,417,682.23
  5. Step 5: Solve for x
    x = 45,417,682.23/7,771.62
  6. Step 6: Final answer
    x = 5,844.04

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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.