Home / 5,540.80-8,308.35-1,644.70

Finding the Fourth Proportional to 5,540.80, 8,308.35 and 1,644.70

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Solution

The fourth proportional to 5,540.80, 8,308.35 and 1,644.70 is: 2,466.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,540.80 : 8,308.35 = 1,644.70 : x
  2. Step 2: Convert to fraction form
    5,540.80/8,308.35 = 1,644.70/x
  3. Step 3: Cross multiply
    5,540.80x = 8,308.35 × 1,644.70
  4. Step 4: Simplify right side
    5,540.80x = 13,664,743.25
  5. Step 5: Solve for x
    x = 13,664,743.25/5,540.80
  6. Step 6: Final answer
    x = 2,466.20

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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.