Home / 2,218.41-3,326.24-1,245.20

Finding the Fourth Proportional to 2,218.41, 3,326.24 and 1,245.20

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Solution

The fourth proportional to 2,218.41, 3,326.24 and 1,245.20 is: 1,867.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.41 : 3,326.24 = 1,245.20 : x
  2. Step 2: Convert to fraction form
    2,218.41/3,326.24 = 1,245.20/x
  3. Step 3: Cross multiply
    2,218.41x = 3,326.24 × 1,245.20
  4. Step 4: Simplify right side
    2,218.41x = 4,141,820.53
  5. Step 5: Solve for x
    x = 4,141,820.53/2,218.41
  6. Step 6: Final answer
    x = 1,867.02

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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.