Home / 5,415.29-8,112.57-3,217.34

Finding the Fourth Proportional to 5,415.29, 8,112.57 and 3,217.34

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Solution

The fourth proportional to 5,415.29, 8,112.57 and 3,217.34 is: 4,819.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.29 : 8,112.57 = 3,217.34 : x
  2. Step 2: Convert to fraction form
    5,415.29/8,112.57 = 3,217.34/x
  3. Step 3: Cross multiply
    5,415.29x = 8,112.57 × 3,217.34
  4. Step 4: Simplify right side
    5,415.29x = 26,100,895.96
  5. Step 5: Solve for x
    x = 26,100,895.96/5,415.29
  6. Step 6: Final answer
    x = 4,819.85

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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.