Home / 3,608.82-5,412.47-1,143.86

Finding the Fourth Proportional to 3,608.82, 5,412.47 and 1,143.86

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Solution

The fourth proportional to 3,608.82, 5,412.47 and 1,143.86 is: 1,715.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,608.82 : 5,412.47 = 1,143.86 : x
  2. Step 2: Convert to fraction form
    3,608.82/5,412.47 = 1,143.86/x
  3. Step 3: Cross multiply
    3,608.82x = 5,412.47 × 1,143.86
  4. Step 4: Simplify right side
    3,608.82x = 6,191,075.15
  5. Step 5: Solve for x
    x = 6,191,075.15/3,608.82
  6. Step 6: Final answer
    x = 1,715.54

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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.