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Finding the Fourth Proportional to 3,550.42, 5,326 and 1,361

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Solution

The fourth proportional to 3,550.42, 5,326 and 1,361 is: 2,041.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,550.42 : 5,326 = 1,361 : x
  2. Step 2: Convert to fraction form
    3,550.42/5,326 = 1,361/x
  3. Step 3: Cross multiply
    3,550.42x = 5,326 × 1,361
  4. Step 4: Simplify right side
    3,550.42x = 7,248,686
  5. Step 5: Solve for x
    x = 7,248,686/3,550.42
  6. Step 6: Final answer
    x = 2,041.64

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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.