Home / 3,725.76-5,580.80-2,991.36

Finding the Fourth Proportional to 3,725.76, 5,580.80 and 2,991.36

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Solution

The fourth proportional to 3,725.76, 5,580.80 and 2,991.36 is: 4,480.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,725.76 : 5,580.80 = 2,991.36 : x
  2. Step 2: Convert to fraction form
    3,725.76/5,580.80 = 2,991.36/x
  3. Step 3: Cross multiply
    3,725.76x = 5,580.80 × 2,991.36
  4. Step 4: Simplify right side
    3,725.76x = 16,694,181.89
  5. Step 5: Solve for x
    x = 16,694,181.89/3,725.76
  6. Step 6: Final answer
    x = 4,480.75

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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.