Home / 1,348.29-2,022.72-1,212.21

Finding the Fourth Proportional to 1,348.29, 2,022.72 and 1,212.21

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Solution

The fourth proportional to 1,348.29, 2,022.72 and 1,212.21 is: 1,818.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348.29 : 2,022.72 = 1,212.21 : x
  2. Step 2: Convert to fraction form
    1,348.29/2,022.72 = 1,212.21/x
  3. Step 3: Cross multiply
    1,348.29x = 2,022.72 × 1,212.21
  4. Step 4: Simplify right side
    1,348.29x = 2,451,961.41
  5. Step 5: Solve for x
    x = 2,451,961.41/1,348.29
  6. Step 6: Final answer
    x = 1,818.57

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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.