Home / 3,726.36-5,589.78-1,129.50

Finding the Fourth Proportional to 3,726.36, 5,589.78 and 1,129.50

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Solution

The fourth proportional to 3,726.36, 5,589.78 and 1,129.50 is: 1,694.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,726.36 : 5,589.78 = 1,129.50 : x
  2. Step 2: Convert to fraction form
    3,726.36/5,589.78 = 1,129.50/x
  3. Step 3: Cross multiply
    3,726.36x = 5,589.78 × 1,129.50
  4. Step 4: Simplify right side
    3,726.36x = 6,313,656.51
  5. Step 5: Solve for x
    x = 6,313,656.51/3,726.36
  6. Step 6: Final answer
    x = 1,694.32

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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.