Home / 5,813.50-8,720.22-3,221.92

Finding the Fourth Proportional to 5,813.50, 8,720.22 and 3,221.92

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Solution

The fourth proportional to 5,813.50, 8,720.22 and 3,221.92 is: 4,832.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,813.50 : 8,720.22 = 3,221.92 : x
  2. Step 2: Convert to fraction form
    5,813.50/8,720.22 = 3,221.92/x
  3. Step 3: Cross multiply
    5,813.50x = 8,720.22 × 3,221.92
  4. Step 4: Simplify right side
    5,813.50x = 28,095,851.22
  5. Step 5: Solve for x
    x = 28,095,851.22/5,813.50
  6. Step 6: Final answer
    x = 4,832.86

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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.