Home / 1,231.04-1,845.36-461.12

Finding the Fourth Proportional to 1,231.04, 1,845.36 and 461.12

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Solution

The fourth proportional to 1,231.04, 1,845.36 and 461.12 is: 691.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231.04 : 1,845.36 = 461.12 : x
  2. Step 2: Convert to fraction form
    1,231.04/1,845.36 = 461.12/x
  3. Step 3: Cross multiply
    1,231.04x = 1,845.36 × 461.12
  4. Step 4: Simplify right side
    1,231.04x = 850,932.40
  5. Step 5: Solve for x
    x = 850,932.40/1,231.04
  6. Step 6: Final answer
    x = 691.23

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Double scale
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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.