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Finding the Fourth Proportional to 1,353.49, 2,029.51 and 798.43

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Solution

The fourth proportional to 1,353.49, 2,029.51 and 798.43 is: 1,197.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353.49 : 2,029.51 = 798.43 : x
  2. Step 2: Convert to fraction form
    1,353.49/2,029.51 = 798.43/x
  3. Step 3: Cross multiply
    1,353.49x = 2,029.51 × 798.43
  4. Step 4: Simplify right side
    1,353.49x = 1,620,421.67
  5. Step 5: Solve for x
    x = 1,620,421.67/1,353.49
  6. Step 6: Final answer
    x = 1,197.22

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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.