Home / 7,184.50-9,914.43-3,997.81

Finding the Fourth Proportional to 7,184.50, 9,914.43 and 3,997.81

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Solution

The fourth proportional to 7,184.50, 9,914.43 and 3,997.81 is: 5,516.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,184.50 : 9,914.43 = 3,997.81 : x
  2. Step 2: Convert to fraction form
    7,184.50/9,914.43 = 3,997.81/x
  3. Step 3: Cross multiply
    7,184.50x = 9,914.43 × 3,997.81
  4. Step 4: Simplify right side
    7,184.50x = 39,636,007.40
  5. Step 5: Solve for x
    x = 39,636,007.40/7,184.50
  6. Step 6: Final answer
    x = 5,516.88

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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.