Home / 5,525.82-8,278.20-4,287.12

Finding the Fourth Proportional to 5,525.82, 8,278.20 and 4,287.12

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Solution

The fourth proportional to 5,525.82, 8,278.20 and 4,287.12 is: 6,422.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,525.82 : 8,278.20 = 4,287.12 : x
  2. Step 2: Convert to fraction form
    5,525.82/8,278.20 = 4,287.12/x
  3. Step 3: Cross multiply
    5,525.82x = 8,278.20 × 4,287.12
  4. Step 4: Simplify right side
    5,525.82x = 35,489,636.78
  5. Step 5: Solve for x
    x = 35,489,636.78/5,525.82
  6. Step 6: Final answer
    x = 6,422.51

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Half scale
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Double scale
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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.