Home / 3,511.88-5,268.34-1,171.12

Finding the Fourth Proportional to 3,511.88, 5,268.34 and 1,171.12

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Solution

The fourth proportional to 3,511.88, 5,268.34 and 1,171.12 is: 1,756.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.88 : 5,268.34 = 1,171.12 : x
  2. Step 2: Convert to fraction form
    3,511.88/5,268.34 = 1,171.12/x
  3. Step 3: Cross multiply
    3,511.88x = 5,268.34 × 1,171.12
  4. Step 4: Simplify right side
    3,511.88x = 6,169,858.34
  5. Step 5: Solve for x
    x = 6,169,858.34/3,511.88
  6. Step 6: Final answer
    x = 1,756.85

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1.5x scale

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.