Home / 3,845.12-5,726.86-3,605.36

Finding the Fourth Proportional to 3,845.12, 5,726.86 and 3,605.36

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Solution

The fourth proportional to 3,845.12, 5,726.86 and 3,605.36 is: 5,369.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,845.12 : 5,726.86 = 3,605.36 : x
  2. Step 2: Convert to fraction form
    3,845.12/5,726.86 = 3,605.36/x
  3. Step 3: Cross multiply
    3,845.12x = 5,726.86 × 3,605.36
  4. Step 4: Simplify right side
    3,845.12x = 20,647,391.97
  5. Step 5: Solve for x
    x = 20,647,391.97/3,845.12
  6. Step 6: Final answer
    x = 5,369.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.