Home / 3,186.42-4,397.91-1,842.09

Finding the Fourth Proportional to 3,186.42, 4,397.91 and 1,842.09

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Solution

The fourth proportional to 3,186.42, 4,397.91 and 1,842.09 is: 2,542.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.42 : 4,397.91 = 1,842.09 : x
  2. Step 2: Convert to fraction form
    3,186.42/4,397.91 = 1,842.09/x
  3. Step 3: Cross multiply
    3,186.42x = 4,397.91 × 1,842.09
  4. Step 4: Simplify right side
    3,186.42x = 8,101,346.03
  5. Step 5: Solve for x
    x = 8,101,346.03/3,186.42
  6. Step 6: Final answer
    x = 2,542.46

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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.