Home / 1,349.23-2,023.27-424.54

Finding the Fourth Proportional to 1,349.23, 2,023.27 and 424.54

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Solution

The fourth proportional to 1,349.23, 2,023.27 and 424.54 is: 636.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,349.23 : 2,023.27 = 424.54 : x
  2. Step 2: Convert to fraction form
    1,349.23/2,023.27 = 424.54/x
  3. Step 3: Cross multiply
    1,349.23x = 2,023.27 × 424.54
  4. Step 4: Simplify right side
    1,349.23x = 858,959.05
  5. Step 5: Solve for x
    x = 858,959.05/1,349.23
  6. Step 6: Final answer
    x = 636.63

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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.