Home / 3,511.50-4,845.87-2,113.98

Finding the Fourth Proportional to 3,511.50, 4,845.87 and 2,113.98

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Solution

The fourth proportional to 3,511.50, 4,845.87 and 2,113.98 is: 2,917.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.50 : 4,845.87 = 2,113.98 : x
  2. Step 2: Convert to fraction form
    3,511.50/4,845.87 = 2,113.98/x
  3. Step 3: Cross multiply
    3,511.50x = 4,845.87 × 2,113.98
  4. Step 4: Simplify right side
    3,511.50x = 10,244,072.26
  5. Step 5: Solve for x
    x = 10,244,072.26/3,511.50
  6. Step 6: Final answer
    x = 2,917.29

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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.