Home / 3,511.35-4,850.64-2,807.87

Finding the Fourth Proportional to 3,511.35, 4,850.64 and 2,807.87

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Solution

The fourth proportional to 3,511.35, 4,850.64 and 2,807.87 is: 3,878.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.35 : 4,850.64 = 2,807.87 : x
  2. Step 2: Convert to fraction form
    3,511.35/4,850.64 = 2,807.87/x
  3. Step 3: Cross multiply
    3,511.35x = 4,850.64 × 2,807.87
  4. Step 4: Simplify right side
    3,511.35x = 13,619,942.28
  5. Step 5: Solve for x
    x = 13,619,942.28/3,511.35
  6. Step 6: Final answer
    x = 3,878.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.