Home / 1,281.44-1,769.10-1,193.96

Finding the Fourth Proportional to 1,281.44, 1,769.10 and 1,193.96

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Solution

The fourth proportional to 1,281.44, 1,769.10 and 1,193.96 is: 1,648.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281.44 : 1,769.10 = 1,193.96 : x
  2. Step 2: Convert to fraction form
    1,281.44/1,769.10 = 1,193.96/x
  3. Step 3: Cross multiply
    1,281.44x = 1,769.10 × 1,193.96
  4. Step 4: Simplify right side
    1,281.44x = 2,112,234.64
  5. Step 5: Solve for x
    x = 2,112,234.64/1,281.44
  6. Step 6: Final answer
    x = 1,648.33

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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.