Home / 5,618.45-8,431.44-2,331.54

Finding the Fourth Proportional to 5,618.45, 8,431.44 and 2,331.54

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Solution

The fourth proportional to 5,618.45, 8,431.44 and 2,331.54 is: 3,498.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.45 : 8,431.44 = 2,331.54 : x
  2. Step 2: Convert to fraction form
    5,618.45/8,431.44 = 2,331.54/x
  3. Step 3: Cross multiply
    5,618.45x = 8,431.44 × 2,331.54
  4. Step 4: Simplify right side
    5,618.45x = 19,658,261.84
  5. Step 5: Solve for x
    x = 19,658,261.84/5,618.45
  6. Step 6: Final answer
    x = 3,498.88

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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.