Home / 5,481.15-8,220.30-1,584.64

Finding the Fourth Proportional to 5,481.15, 8,220.30 and 1,584.64

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Solution

The fourth proportional to 5,481.15, 8,220.30 and 1,584.64 is: 2,376.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,481.15 : 8,220.30 = 1,584.64 : x
  2. Step 2: Convert to fraction form
    5,481.15/8,220.30 = 1,584.64/x
  3. Step 3: Cross multiply
    5,481.15x = 8,220.30 × 1,584.64
  4. Step 4: Simplify right side
    5,481.15x = 13,026,216.19
  5. Step 5: Solve for x
    x = 13,026,216.19/5,481.15
  6. Step 6: Final answer
    x = 2,376.55

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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.