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Finding the Fourth Proportional to 1,959.57, 2,704.11 and 1,174.05

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Solution

The fourth proportional to 1,959.57, 2,704.11 and 1,174.05 is: 1,620.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,959.57 : 2,704.11 = 1,174.05 : x
  2. Step 2: Convert to fraction form
    1,959.57/2,704.11 = 1,174.05/x
  3. Step 3: Cross multiply
    1,959.57x = 2,704.11 × 1,174.05
  4. Step 4: Simplify right side
    1,959.57x = 3,174,760.35
  5. Step 5: Solve for x
    x = 3,174,760.35/1,959.57
  6. Step 6: Final answer
    x = 1,620.13

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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.