Home / 3,725.20-5,580.56-2,076.80

Finding the Fourth Proportional to 3,725.20, 5,580.56 and 2,076.80

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Solution

The fourth proportional to 3,725.20, 5,580.56 and 2,076.80 is: 3,111.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,725.20 : 5,580.56 = 2,076.80 : x
  2. Step 2: Convert to fraction form
    3,725.20/5,580.56 = 2,076.80/x
  3. Step 3: Cross multiply
    3,725.20x = 5,580.56 × 2,076.80
  4. Step 4: Simplify right side
    3,725.20x = 11,589,707.01
  5. Step 5: Solve for x
    x = 11,589,707.01/3,725.20
  6. Step 6: Final answer
    x = 3,111.16

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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.