Home / 1,261.06-1,892.60-914.56

Finding the Fourth Proportional to 1,261.06, 1,892.60 and 914.56

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Solution

The fourth proportional to 1,261.06, 1,892.60 and 914.56 is: 1,372.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261.06 : 1,892.60 = 914.56 : x
  2. Step 2: Convert to fraction form
    1,261.06/1,892.60 = 914.56/x
  3. Step 3: Cross multiply
    1,261.06x = 1,892.60 × 914.56
  4. Step 4: Simplify right side
    1,261.06x = 1,730,896.26
  5. Step 5: Solve for x
    x = 1,730,896.26/1,261.06
  6. Step 6: Final answer
    x = 1,372.57

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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.