Home / 6,811.21-9,399.61-3,827.25

Finding the Fourth Proportional to 6,811.21, 9,399.61 and 3,827.25

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Solution

The fourth proportional to 6,811.21, 9,399.61 and 3,827.25 is: 5,281.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,811.21 : 9,399.61 = 3,827.25 : x
  2. Step 2: Convert to fraction form
    6,811.21/9,399.61 = 3,827.25/x
  3. Step 3: Cross multiply
    6,811.21x = 9,399.61 × 3,827.25
  4. Step 4: Simplify right side
    6,811.21x = 35,974,612.56
  5. Step 5: Solve for x
    x = 35,974,612.56/6,811.21
  6. Step 6: Final answer
    x = 5,281.68

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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.