Home / 4,069.45-6,105.32-1,147.78

Finding the Fourth Proportional to 4,069.45, 6,105.32 and 1,147.78

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Solution

The fourth proportional to 4,069.45, 6,105.32 and 1,147.78 is: 1,721.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,069.45 : 6,105.32 = 1,147.78 : x
  2. Step 2: Convert to fraction form
    4,069.45/6,105.32 = 1,147.78/x
  3. Step 3: Cross multiply
    4,069.45x = 6,105.32 × 1,147.78
  4. Step 4: Simplify right side
    4,069.45x = 7,007,564.19
  5. Step 5: Solve for x
    x = 7,007,564.19/4,069.45
  6. Step 6: Final answer
    x = 1,721.99

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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.