Home / 1,348.30-2,022.67-423.65

Finding the Fourth Proportional to 1,348.30, 2,022.67 and 423.65

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Solution

The fourth proportional to 1,348.30, 2,022.67 and 423.65 is: 635.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348.30 : 2,022.67 = 423.65 : x
  2. Step 2: Convert to fraction form
    1,348.30/2,022.67 = 423.65/x
  3. Step 3: Cross multiply
    1,348.30x = 2,022.67 × 423.65
  4. Step 4: Simplify right side
    1,348.30x = 856,902.03
  5. Step 5: Solve for x
    x = 856,902.03/1,348.30
  6. Step 6: Final answer
    x = 635.54

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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.