Home / 3,132.26-4,321.68-2,187.02

Finding the Fourth Proportional to 3,132.26, 4,321.68 and 2,187.02

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Solution

The fourth proportional to 3,132.26, 4,321.68 and 2,187.02 is: 3,017.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.26 : 4,321.68 = 2,187.02 : x
  2. Step 2: Convert to fraction form
    3,132.26/4,321.68 = 2,187.02/x
  3. Step 3: Cross multiply
    3,132.26x = 4,321.68 × 2,187.02
  4. Step 4: Simplify right side
    3,132.26x = 9,451,600.59
  5. Step 5: Solve for x
    x = 9,451,600.59/3,132.26
  6. Step 6: Final answer
    x = 3,017.50

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1.5x scale

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.