Home / 1,239.26-1,845.41-1,225.62

Finding the Fourth Proportional to 1,239.26, 1,845.41 and 1,225.62

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Solution

The fourth proportional to 1,239.26, 1,845.41 and 1,225.62 is: 1,825.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239.26 : 1,845.41 = 1,225.62 : x
  2. Step 2: Convert to fraction form
    1,239.26/1,845.41 = 1,225.62/x
  3. Step 3: Cross multiply
    1,239.26x = 1,845.41 × 1,225.62
  4. Step 4: Simplify right side
    1,239.26x = 2,261,765.28
  5. Step 5: Solve for x
    x = 2,261,765.28/1,239.26
  6. Step 6: Final answer
    x = 1,825.10

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.