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Finding the Fourth Proportional to 1,230.62, 1,694.37 and 1,043.72

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Solution

The fourth proportional to 1,230.62, 1,694.37 and 1,043.72 is: 1,437.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230.62 : 1,694.37 = 1,043.72 : x
  2. Step 2: Convert to fraction form
    1,230.62/1,694.37 = 1,043.72/x
  3. Step 3: Cross multiply
    1,230.62x = 1,694.37 × 1,043.72
  4. Step 4: Simplify right side
    1,230.62x = 1,768,447.86
  5. Step 5: Solve for x
    x = 1,768,447.86/1,230.62
  6. Step 6: Final answer
    x = 1,437.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.