Home / 6,216.28-8,578.20-3,563.80

Finding the Fourth Proportional to 6,216.28, 8,578.20 and 3,563.80

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Solution

The fourth proportional to 6,216.28, 8,578.20 and 3,563.80 is: 4,917.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,216.28 : 8,578.20 = 3,563.80 : x
  2. Step 2: Convert to fraction form
    6,216.28/8,578.20 = 3,563.80/x
  3. Step 3: Cross multiply
    6,216.28x = 8,578.20 × 3,563.80
  4. Step 4: Simplify right side
    6,216.28x = 30,570,989.16
  5. Step 5: Solve for x
    x = 30,570,989.16/6,216.28
  6. Step 6: Final answer
    x = 4,917.89

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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.