Home / 3,988.34-5,496.42-2,867.33

Finding the Fourth Proportional to 3,988.34, 5,496.42 and 2,867.33

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Solution

The fourth proportional to 3,988.34, 5,496.42 and 2,867.33 is: 3,951.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988.34 : 5,496.42 = 2,867.33 : x
  2. Step 2: Convert to fraction form
    3,988.34/5,496.42 = 2,867.33/x
  3. Step 3: Cross multiply
    3,988.34x = 5,496.42 × 2,867.33
  4. Step 4: Simplify right side
    3,988.34x = 15,760,074.45
  5. Step 5: Solve for x
    x = 15,760,074.45/3,988.34
  6. Step 6: Final answer
    x = 3,951.54

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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.