Home / 5,540.36-8,308.80-1,591.36

Finding the Fourth Proportional to 5,540.36, 8,308.80 and 1,591.36

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Solution

The fourth proportional to 5,540.36, 8,308.80 and 1,591.36 is: 2,386.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,540.36 : 8,308.80 = 1,591.36 : x
  2. Step 2: Convert to fraction form
    5,540.36/8,308.80 = 1,591.36/x
  3. Step 3: Cross multiply
    5,540.36x = 8,308.80 × 1,591.36
  4. Step 4: Simplify right side
    5,540.36x = 13,222,291.97
  5. Step 5: Solve for x
    x = 13,222,291.97/5,540.36
  6. Step 6: Final answer
    x = 2,386.54

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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.