Home / 1,348.28-2,022.70-1,212.20

Finding the Fourth Proportional to 1,348.28, 2,022.70 and 1,212.20

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Solution

The fourth proportional to 1,348.28, 2,022.70 and 1,212.20 is: 1,818.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348.28 : 2,022.70 = 1,212.20 : x
  2. Step 2: Convert to fraction form
    1,348.28/2,022.70 = 1,212.20/x
  3. Step 3: Cross multiply
    1,348.28x = 2,022.70 × 1,212.20
  4. Step 4: Simplify right side
    1,348.28x = 2,451,916.94
  5. Step 5: Solve for x
    x = 2,451,916.94/1,348.28
  6. Step 6: Final answer
    x = 1,818.55

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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.