Home / 1,474.27-2,034.45-811.09

Finding the Fourth Proportional to 1,474.27, 2,034.45 and 811.09

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Solution

The fourth proportional to 1,474.27, 2,034.45 and 811.09 is: 1,119.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,474.27 : 2,034.45 = 811.09 : x
  2. Step 2: Convert to fraction form
    1,474.27/2,034.45 = 811.09/x
  3. Step 3: Cross multiply
    1,474.27x = 2,034.45 × 811.09
  4. Step 4: Simplify right side
    1,474.27x = 1,650,122.05
  5. Step 5: Solve for x
    x = 1,650,122.05/1,474.27
  6. Step 6: Final answer
    x = 1,119.28

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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.