Home / 3,678.78-5,518.98-2,037.72

Finding the Fourth Proportional to 3,678.78, 5,518.98 and 2,037.72

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Solution

The fourth proportional to 3,678.78, 5,518.98 and 2,037.72 is: 3,057.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.78 : 5,518.98 = 2,037.72 : x
  2. Step 2: Convert to fraction form
    3,678.78/5,518.98 = 2,037.72/x
  3. Step 3: Cross multiply
    3,678.78x = 5,518.98 × 2,037.72
  4. Step 4: Simplify right side
    3,678.78x = 11,246,135.93
  5. Step 5: Solve for x
    x = 11,246,135.93/3,678.78
  6. Step 6: Final answer
    x = 3,057.03

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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.