Home / 3,186.11-4,383.24-3,112.40

Finding the Fourth Proportional to 3,186.11, 4,383.24 and 3,112.40

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Solution

The fourth proportional to 3,186.11, 4,383.24 and 3,112.40 is: 4,281.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.11 : 4,383.24 = 3,112.40 : x
  2. Step 2: Convert to fraction form
    3,186.11/4,383.24 = 3,112.40/x
  3. Step 3: Cross multiply
    3,186.11x = 4,383.24 × 3,112.40
  4. Step 4: Simplify right side
    3,186.11x = 13,642,396.18
  5. Step 5: Solve for x
    x = 13,642,396.18/3,186.11
  6. Step 6: Final answer
    x = 4,281.83

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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.