Home / 7,988.23-11,983.76-2,722.94

Finding the Fourth Proportional to 7,988.23, 11,983.76 and 2,722.94

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Solution

The fourth proportional to 7,988.23, 11,983.76 and 2,722.94 is: 4,084.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,988.23 : 11,983.76 = 2,722.94 : x
  2. Step 2: Convert to fraction form
    7,988.23/11,983.76 = 2,722.94/x
  3. Step 3: Cross multiply
    7,988.23x = 11,983.76 × 2,722.94
  4. Step 4: Simplify right side
    7,988.23x = 32,631,059.45
  5. Step 5: Solve for x
    x = 32,631,059.45/7,988.23
  6. Step 6: Final answer
    x = 4,084.89

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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.