Home / 6,328.28-8,733.69-3,811.20

Finding the Fourth Proportional to 6,328.28, 8,733.69 and 3,811.20

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Solution

The fourth proportional to 6,328.28, 8,733.69 and 3,811.20 is: 5,259.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,328.28 : 8,733.69 = 3,811.20 : x
  2. Step 2: Convert to fraction form
    6,328.28/8,733.69 = 3,811.20/x
  3. Step 3: Cross multiply
    6,328.28x = 8,733.69 × 3,811.20
  4. Step 4: Simplify right side
    6,328.28x = 33,285,839.33
  5. Step 5: Solve for x
    x = 33,285,839.33/6,328.28
  6. Step 6: Final answer
    x = 5,259.86

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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.