Home / 2,221.94-3,331.02-1,356.86

Finding the Fourth Proportional to 2,221.94, 3,331.02 and 1,356.86

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Solution

The fourth proportional to 2,221.94, 3,331.02 and 1,356.86 is: 2,034.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.94 : 3,331.02 = 1,356.86 : x
  2. Step 2: Convert to fraction form
    2,221.94/3,331.02 = 1,356.86/x
  3. Step 3: Cross multiply
    2,221.94x = 3,331.02 × 1,356.86
  4. Step 4: Simplify right side
    2,221.94x = 4,519,727.80
  5. Step 5: Solve for x
    x = 4,519,727.80/2,221.94
  6. Step 6: Final answer
    x = 2,034.14

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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.