Home / 1,261.17-1,892.97-1,181.59

Finding the Fourth Proportional to 1,261.17, 1,892.97 and 1,181.59

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Solution

The fourth proportional to 1,261.17, 1,892.97 and 1,181.59 is: 1,773.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261.17 : 1,892.97 = 1,181.59 : x
  2. Step 2: Convert to fraction form
    1,261.17/1,892.97 = 1,181.59/x
  3. Step 3: Cross multiply
    1,261.17x = 1,892.97 × 1,181.59
  4. Step 4: Simplify right side
    1,261.17x = 2,236,709.69
  5. Step 5: Solve for x
    x = 2,236,709.69/1,261.17
  6. Step 6: Final answer
    x = 1,773.52

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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.