Home / 3,720.31-5,576.91-1,253.86

Finding the Fourth Proportional to 3,720.31, 5,576.91 and 1,253.86

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Solution

The fourth proportional to 3,720.31, 5,576.91 and 1,253.86 is: 1,879.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.31 : 5,576.91 = 1,253.86 : x
  2. Step 2: Convert to fraction form
    3,720.31/5,576.91 = 1,253.86/x
  3. Step 3: Cross multiply
    3,720.31x = 5,576.91 × 1,253.86
  4. Step 4: Simplify right side
    3,720.31x = 6,992,636.49
  5. Step 5: Solve for x
    x = 6,992,636.49/3,720.31
  6. Step 6: Final answer
    x = 1,879.59

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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.