Home / 4,811.50-7,216.22-2,808.86

Finding the Fourth Proportional to 4,811.50, 7,216.22 and 2,808.86

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Solution

The fourth proportional to 4,811.50, 7,216.22 and 2,808.86 is: 4,212.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,811.50 : 7,216.22 = 2,808.86 : x
  2. Step 2: Convert to fraction form
    4,811.50/7,216.22 = 2,808.86/x
  3. Step 3: Cross multiply
    4,811.50x = 7,216.22 × 2,808.86
  4. Step 4: Simplify right side
    4,811.50x = 20,269,301.58
  5. Step 5: Solve for x
    x = 20,269,301.58/4,811.50
  6. Step 6: Final answer
    x = 4,212.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.