Home / 1,236.23-1,706.61-845.30

Finding the Fourth Proportional to 1,236.23, 1,706.61 and 845.30

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Solution

The fourth proportional to 1,236.23, 1,706.61 and 845.30 is: 1,166.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,236.23 : 1,706.61 = 845.30 : x
  2. Step 2: Convert to fraction form
    1,236.23/1,706.61 = 845.30/x
  3. Step 3: Cross multiply
    1,236.23x = 1,706.61 × 845.30
  4. Step 4: Simplify right side
    1,236.23x = 1,442,597.43
  5. Step 5: Solve for x
    x = 1,442,597.43/1,236.23
  6. Step 6: Final answer
    x = 1,166.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.