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Finding the Fourth Proportional to 1,351.61, 2,027.19 and 377.81

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Solution

The fourth proportional to 1,351.61, 2,027.19 and 377.81 is: 566.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,351.61 : 2,027.19 = 377.81 : x
  2. Step 2: Convert to fraction form
    1,351.61/2,027.19 = 377.81/x
  3. Step 3: Cross multiply
    1,351.61x = 2,027.19 × 377.81
  4. Step 4: Simplify right side
    1,351.61x = 765,892.65
  5. Step 5: Solve for x
    x = 765,892.65/1,351.61
  6. Step 6: Final answer
    x = 566.65

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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.