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Finding the Fourth Proportional to 7,318.50, 10,977.75 and 3,425.64

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Solution

The fourth proportional to 7,318.50, 10,977.75 and 3,425.64 is: 5,138.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,318.50 : 10,977.75 = 3,425.64 : x
  2. Step 2: Convert to fraction form
    7,318.50/10,977.75 = 3,425.64/x
  3. Step 3: Cross multiply
    7,318.50x = 10,977.75 × 3,425.64
  4. Step 4: Simplify right side
    7,318.50x = 37,605,819.51
  5. Step 5: Solve for x
    x = 37,605,819.51/7,318.50
  6. Step 6: Final answer
    x = 5,138.46

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.