Home / 5,540.40-8,311.68-1,644.84

Finding the Fourth Proportional to 5,540.40, 8,311.68 and 1,644.84

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Solution

The fourth proportional to 5,540.40, 8,311.68 and 1,644.84 is: 2,467.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,540.40 : 8,311.68 = 1,644.84 : x
  2. Step 2: Convert to fraction form
    5,540.40/8,311.68 = 1,644.84/x
  3. Step 3: Cross multiply
    5,540.40x = 8,311.68 × 1,644.84
  4. Step 4: Simplify right side
    5,540.40x = 13,671,383.73
  5. Step 5: Solve for x
    x = 13,671,383.73/5,540.40
  6. Step 6: Final answer
    x = 2,467.58

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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.