Home / 3,618.56-4,988.97-2,871.23

Finding the Fourth Proportional to 3,618.56, 4,988.97 and 2,871.23

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Solution

The fourth proportional to 3,618.56, 4,988.97 and 2,871.23 is: 3,958.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.56 : 4,988.97 = 2,871.23 : x
  2. Step 2: Convert to fraction form
    3,618.56/4,988.97 = 2,871.23/x
  3. Step 3: Cross multiply
    3,618.56x = 4,988.97 × 2,871.23
  4. Step 4: Simplify right side
    3,618.56x = 14,324,455.39
  5. Step 5: Solve for x
    x = 14,324,455.39/3,618.56
  6. Step 6: Final answer
    x = 3,958.61

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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.