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Finding the Fourth Proportional to 1,348.82, 2,023.62 and 424.50

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Solution

The fourth proportional to 1,348.82, 2,023.62 and 424.50 is: 636.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348.82 : 2,023.62 = 424.50 : x
  2. Step 2: Convert to fraction form
    1,348.82/2,023.62 = 424.50/x
  3. Step 3: Cross multiply
    1,348.82x = 2,023.62 × 424.50
  4. Step 4: Simplify right side
    1,348.82x = 859,026.69
  5. Step 5: Solve for x
    x = 859,026.69/1,348.82
  6. Step 6: Final answer
    x = 636.87

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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.