Home / 3,550.39-5,326.36-1,085.40

Finding the Fourth Proportional to 3,550.39, 5,326.36 and 1,085.40

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Solution

The fourth proportional to 3,550.39, 5,326.36 and 1,085.40 is: 1,628.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,550.39 : 5,326.36 = 1,085.40 : x
  2. Step 2: Convert to fraction form
    3,550.39/5,326.36 = 1,085.40/x
  3. Step 3: Cross multiply
    3,550.39x = 5,326.36 × 1,085.40
  4. Step 4: Simplify right side
    3,550.39x = 5,781,231.14
  5. Step 5: Solve for x
    x = 5,781,231.14/3,550.39
  6. Step 6: Final answer
    x = 1,628.34

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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.