Home / 3,867.26-5,336.81-2,188.63

Finding the Fourth Proportional to 3,867.26, 5,336.81 and 2,188.63

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Solution

The fourth proportional to 3,867.26, 5,336.81 and 2,188.63 is: 3,020.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,867.26 : 5,336.81 = 2,188.63 : x
  2. Step 2: Convert to fraction form
    3,867.26/5,336.81 = 2,188.63/x
  3. Step 3: Cross multiply
    3,867.26x = 5,336.81 × 2,188.63
  4. Step 4: Simplify right side
    3,867.26x = 11,680,315.81
  5. Step 5: Solve for x
    x = 11,680,315.81/3,867.26
  6. Step 6: Final answer
    x = 3,020.31

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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.