Home / 3,132.86-4,321.28-2,012.02

Finding the Fourth Proportional to 3,132.86, 4,321.28 and 2,012.02

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Solution

The fourth proportional to 3,132.86, 4,321.28 and 2,012.02 is: 2,775.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.86 : 4,321.28 = 2,012.02 : x
  2. Step 2: Convert to fraction form
    3,132.86/4,321.28 = 2,012.02/x
  3. Step 3: Cross multiply
    3,132.86x = 4,321.28 × 2,012.02
  4. Step 4: Simplify right side
    3,132.86x = 8,694,496.01
  5. Step 5: Solve for x
    x = 8,694,496.01/3,132.86
  6. Step 6: Final answer
    x = 2,775.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.