Home / 3,778.85-5,669.09-1,146.44

Finding the Fourth Proportional to 3,778.85, 5,669.09 and 1,146.44

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Solution

The fourth proportional to 3,778.85, 5,669.09 and 1,146.44 is: 1,719.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,778.85 : 5,669.09 = 1,146.44 : x
  2. Step 2: Convert to fraction form
    3,778.85/5,669.09 = 1,146.44/x
  3. Step 3: Cross multiply
    3,778.85x = 5,669.09 × 1,146.44
  4. Step 4: Simplify right side
    3,778.85x = 6,499,271.54
  5. Step 5: Solve for x
    x = 6,499,271.54/3,778.85
  6. Step 6: Final answer
    x = 1,719.91

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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.