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Finding the Fourth Proportional to 1,363.70, 2,043.50 and 998.74

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Solution

The fourth proportional to 1,363.70, 2,043.50 and 998.74 is: 1,496.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,363.70 : 2,043.50 = 998.74 : x
  2. Step 2: Convert to fraction form
    1,363.70/2,043.50 = 998.74/x
  3. Step 3: Cross multiply
    1,363.70x = 2,043.50 × 998.74
  4. Step 4: Simplify right side
    1,363.70x = 2,040,925.19
  5. Step 5: Solve for x
    x = 2,040,925.19/1,363.70
  6. Step 6: Final answer
    x = 1,496.61

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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.