Home / 1,231.19-1,845.82-614.58

Finding the Fourth Proportional to 1,231.19, 1,845.82 and 614.58

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Solution

The fourth proportional to 1,231.19, 1,845.82 and 614.58 is: 921.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231.19 : 1,845.82 = 614.58 : x
  2. Step 2: Convert to fraction form
    1,231.19/1,845.82 = 614.58/x
  3. Step 3: Cross multiply
    1,231.19x = 1,845.82 × 614.58
  4. Step 4: Simplify right side
    1,231.19x = 1,134,402.52
  5. Step 5: Solve for x
    x = 1,134,402.52/1,231.19
  6. Step 6: Final answer
    x = 921.39

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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.