Home / 9,179.67-13,771.76-2,939.70

Finding the Fourth Proportional to 9,179.67, 13,771.76 and 2,939.70

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Solution

The fourth proportional to 9,179.67, 13,771.76 and 2,939.70 is: 4,410.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,179.67 : 13,771.76 = 2,939.70 : x
  2. Step 2: Convert to fraction form
    9,179.67/13,771.76 = 2,939.70/x
  3. Step 3: Cross multiply
    9,179.67x = 13,771.76 × 2,939.70
  4. Step 4: Simplify right side
    9,179.67x = 40,484,828.17
  5. Step 5: Solve for x
    x = 40,484,828.17/9,179.67
  6. Step 6: Final answer
    x = 4,410.27

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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.