Home / 3,778.79-5,669.33-1,181.75

Finding the Fourth Proportional to 3,778.79, 5,669.33 and 1,181.75

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Solution

The fourth proportional to 3,778.79, 5,669.33 and 1,181.75 is: 1,772.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.79 : 5,669.33 = 1,181.75 : x
  2. Step 2: Convert to fraction form
    3,778.79/5,669.33 = 1,181.75/x
  3. Step 3: Cross multiply
    3,778.79x = 5,669.33 × 1,181.75
  4. Step 4: Simplify right side
    3,778.79x = 6,699,696.47
  5. Step 5: Solve for x
    x = 6,699,696.47/3,778.79
  6. Step 6: Final answer
    x = 1,772.98

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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.