Home / 3,720.53-5,580.45-1,255.02

Finding the Fourth Proportional to 3,720.53, 5,580.45 and 1,255.02

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Solution

The fourth proportional to 3,720.53, 5,580.45 and 1,255.02 is: 1,882.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.53 : 5,580.45 = 1,255.02 : x
  2. Step 2: Convert to fraction form
    3,720.53/5,580.45 = 1,255.02/x
  3. Step 3: Cross multiply
    3,720.53x = 5,580.45 × 1,255.02
  4. Step 4: Simplify right side
    3,720.53x = 7,003,576.36
  5. Step 5: Solve for x
    x = 7,003,576.36/3,720.53
  6. Step 6: Final answer
    x = 1,882.42

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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.