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Finding the Fourth Proportional to 1,244.70, 1,866.13 and 1,073.39

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Solution

The fourth proportional to 1,244.70, 1,866.13 and 1,073.39 is: 1,609.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244.70 : 1,866.13 = 1,073.39 : x
  2. Step 2: Convert to fraction form
    1,244.70/1,866.13 = 1,073.39/x
  3. Step 3: Cross multiply
    1,244.70x = 1,866.13 × 1,073.39
  4. Step 4: Simplify right side
    1,244.70x = 2,003,073.27
  5. Step 5: Solve for x
    x = 2,003,073.27/1,244.70
  6. Step 6: Final answer
    x = 1,609.28

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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.