Home / 2,645.40-3,968.22-2,182.32

Finding the Fourth Proportional to 2,645.40, 3,968.22 and 2,182.32

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Solution

The fourth proportional to 2,645.40, 3,968.22 and 2,182.32 is: 3,273.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,645.40 : 3,968.22 = 2,182.32 : x
  2. Step 2: Convert to fraction form
    2,645.40/3,968.22 = 2,182.32/x
  3. Step 3: Cross multiply
    2,645.40x = 3,968.22 × 2,182.32
  4. Step 4: Simplify right side
    2,645.40x = 8,659,926.61
  5. Step 5: Solve for x
    x = 8,659,926.61/2,645.40
  6. Step 6: Final answer
    x = 3,273.58

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1.5x scale

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.