Home / 7,724.42-11,585.11-3,771.75

Finding the Fourth Proportional to 7,724.42, 11,585.11 and 3,771.75

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Solution

The fourth proportional to 7,724.42, 11,585.11 and 3,771.75 is: 5,656.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,724.42 : 11,585.11 = 3,771.75 : x
  2. Step 2: Convert to fraction form
    7,724.42/11,585.11 = 3,771.75/x
  3. Step 3: Cross multiply
    7,724.42x = 11,585.11 × 3,771.75
  4. Step 4: Simplify right side
    7,724.42x = 43,696,138.64
  5. Step 5: Solve for x
    x = 43,696,138.64/7,724.42
  6. Step 6: Final answer
    x = 5,656.88

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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.