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Finding the Fourth Proportional to 1,346.34, 2,020.01 and 791.52

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Solution

The fourth proportional to 1,346.34, 2,020.01 and 791.52 is: 1,187.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,346.34 : 2,020.01 = 791.52 : x
  2. Step 2: Convert to fraction form
    1,346.34/2,020.01 = 791.52/x
  3. Step 3: Cross multiply
    1,346.34x = 2,020.01 × 791.52
  4. Step 4: Simplify right side
    1,346.34x = 1,598,874.36
  5. Step 5: Solve for x
    x = 1,598,874.36/1,346.34
  6. Step 6: Final answer
    x = 1,187.57

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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.