Home / 5,411.22-8,107.92-3,217.20

Finding the Fourth Proportional to 5,411.22, 8,107.92 and 3,217.20

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Solution

The fourth proportional to 5,411.22, 8,107.92 and 3,217.20 is: 4,820.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,411.22 : 8,107.92 = 3,217.20 : x
  2. Step 2: Convert to fraction form
    5,411.22/8,107.92 = 3,217.20/x
  3. Step 3: Cross multiply
    5,411.22x = 8,107.92 × 3,217.20
  4. Step 4: Simplify right side
    5,411.22x = 26,084,800.22
  5. Step 5: Solve for x
    x = 26,084,800.22/5,411.22
  6. Step 6: Final answer
    x = 4,820.50

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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.