Home / 1,892.11-2,611.19-1,052.78

Finding the Fourth Proportional to 1,892.11, 2,611.19 and 1,052.78

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Solution

The fourth proportional to 1,892.11, 2,611.19 and 1,052.78 is: 1,452.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,892.11 : 2,611.19 = 1,052.78 : x
  2. Step 2: Convert to fraction form
    1,892.11/2,611.19 = 1,052.78/x
  3. Step 3: Cross multiply
    1,892.11x = 2,611.19 × 1,052.78
  4. Step 4: Simplify right side
    1,892.11x = 2,749,003.34
  5. Step 5: Solve for x
    x = 2,749,003.34/1,892.11
  6. Step 6: Final answer
    x = 1,452.88

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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.