Home / 5,477.71-8,219.33-2,191.75

Finding the Fourth Proportional to 5,477.71, 8,219.33 and 2,191.75

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Solution

The fourth proportional to 5,477.71, 8,219.33 and 2,191.75 is: 3,288.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,477.71 : 8,219.33 = 2,191.75 : x
  2. Step 2: Convert to fraction form
    5,477.71/8,219.33 = 2,191.75/x
  3. Step 3: Cross multiply
    5,477.71x = 8,219.33 × 2,191.75
  4. Step 4: Simplify right side
    5,477.71x = 18,014,716.53
  5. Step 5: Solve for x
    x = 18,014,716.53/5,477.71
  6. Step 6: Final answer
    x = 3,288.73

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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.