Home / 6,128.36-9,190.82-2,179.11

Finding the Fourth Proportional to 6,128.36, 9,190.82 and 2,179.11

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Solution

The fourth proportional to 6,128.36, 9,190.82 and 2,179.11 is: 3,268.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,128.36 : 9,190.82 = 2,179.11 : x
  2. Step 2: Convert to fraction form
    6,128.36/9,190.82 = 2,179.11/x
  3. Step 3: Cross multiply
    6,128.36x = 9,190.82 × 2,179.11
  4. Step 4: Simplify right side
    6,128.36x = 20,027,807.77
  5. Step 5: Solve for x
    x = 20,027,807.77/6,128.36
  6. Step 6: Final answer
    x = 3,268.06

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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.