Home / 7,814.38-11,721.20-2,267.60

Finding the Fourth Proportional to 7,814.38, 11,721.20 and 2,267.60

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Solution

The fourth proportional to 7,814.38, 11,721.20 and 2,267.60 is: 3,401.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,814.38 : 11,721.20 = 2,267.60 : x
  2. Step 2: Convert to fraction form
    7,814.38/11,721.20 = 2,267.60/x
  3. Step 3: Cross multiply
    7,814.38x = 11,721.20 × 2,267.60
  4. Step 4: Simplify right side
    7,814.38x = 26,578,993.12
  5. Step 5: Solve for x
    x = 26,578,993.12/7,814.38
  6. Step 6: Final answer
    x = 3,401.29

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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.