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Finding the Fourth Proportional to 3,653.05, 5,480.43 and 1,055.92

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Solution

The fourth proportional to 3,653.05, 5,480.43 and 1,055.92 is: 1,584.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,653.05 : 5,480.43 = 1,055.92 : x
  2. Step 2: Convert to fraction form
    3,653.05/5,480.43 = 1,055.92/x
  3. Step 3: Cross multiply
    3,653.05x = 5,480.43 × 1,055.92
  4. Step 4: Simplify right side
    3,653.05x = 5,786,895.65
  5. Step 5: Solve for x
    x = 5,786,895.65/3,653.05
  6. Step 6: Final answer
    x = 1,584.13

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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.