Home / 1,348.60-2,022.38-423.96

Finding the Fourth Proportional to 1,348.60, 2,022.38 and 423.96

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Solution

The fourth proportional to 1,348.60, 2,022.38 and 423.96 is: 635.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348.60 : 2,022.38 = 423.96 : x
  2. Step 2: Convert to fraction form
    1,348.60/2,022.38 = 423.96/x
  3. Step 3: Cross multiply
    1,348.60x = 2,022.38 × 423.96
  4. Step 4: Simplify right side
    1,348.60x = 857,408.22
  5. Step 5: Solve for x
    x = 857,408.22/1,348.60
  6. Step 6: Final answer
    x = 635.78

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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.