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Finding the Fourth Proportional to 5,321.44, 7,340.25 and 3,826.99

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Solution

The fourth proportional to 5,321.44, 7,340.25 and 3,826.99 is: 5,278.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,321.44 : 7,340.25 = 3,826.99 : x
  2. Step 2: Convert to fraction form
    5,321.44/7,340.25 = 3,826.99/x
  3. Step 3: Cross multiply
    5,321.44x = 7,340.25 × 3,826.99
  4. Step 4: Simplify right side
    5,321.44x = 28,091,063.35
  5. Step 5: Solve for x
    x = 28,091,063.35/5,321.44
  6. Step 6: Final answer
    x = 5,278.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.