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Finding the Fourth Proportional to 1,954.92, 2,697.82 and 1,169

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Solution

The fourth proportional to 1,954.92, 2,697.82 and 1,169 is: 1,613.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,954.92 : 2,697.82 = 1,169 : x
  2. Step 2: Convert to fraction form
    1,954.92/2,697.82 = 1,169/x
  3. Step 3: Cross multiply
    1,954.92x = 2,697.82 × 1,169
  4. Step 4: Simplify right side
    1,954.92x = 3,153,751.58
  5. Step 5: Solve for x
    x = 3,153,751.58/1,954.92
  6. Step 6: Final answer
    x = 1,613.24

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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.