Home / 1,348.25-2,022.21-423.63

Finding the Fourth Proportional to 1,348.25, 2,022.21 and 423.63

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Solution

The fourth proportional to 1,348.25, 2,022.21 and 423.63 is: 635.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348.25 : 2,022.21 = 423.63 : x
  2. Step 2: Convert to fraction form
    1,348.25/2,022.21 = 423.63/x
  3. Step 3: Cross multiply
    1,348.25x = 2,022.21 × 423.63
  4. Step 4: Simplify right side
    1,348.25x = 856,668.82
  5. Step 5: Solve for x
    x = 856,668.82/1,348.25
  6. Step 6: Final answer
    x = 635.40

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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.