Home / 2,221.44-3,331.84-1,397.18

Finding the Fourth Proportional to 2,221.44, 3,331.84 and 1,397.18

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Solution

The fourth proportional to 2,221.44, 3,331.84 and 1,397.18 is: 2,095.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.44 : 3,331.84 = 1,397.18 : x
  2. Step 2: Convert to fraction form
    2,221.44/3,331.84 = 1,397.18/x
  3. Step 3: Cross multiply
    2,221.44x = 3,331.84 × 1,397.18
  4. Step 4: Simplify right side
    2,221.44x = 4,655,180.21
  5. Step 5: Solve for x
    x = 4,655,180.21/2,221.44
  6. Step 6: Final answer
    x = 2,095.57

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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.