Home / 3,182.72-4,390.32-2,186.44

Finding the Fourth Proportional to 3,182.72, 4,390.32 and 2,186.44

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Solution

The fourth proportional to 3,182.72, 4,390.32 and 2,186.44 is: 3,016.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,182.72 : 4,390.32 = 2,186.44 : x
  2. Step 2: Convert to fraction form
    3,182.72/4,390.32 = 2,186.44/x
  3. Step 3: Cross multiply
    3,182.72x = 4,390.32 × 2,186.44
  4. Step 4: Simplify right side
    3,182.72x = 9,599,171.26
  5. Step 5: Solve for x
    x = 9,599,171.26/3,182.72
  6. Step 6: Final answer
    x = 3,016.03

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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.