Home / 1,255.70-1,733.79-1,162.40

Finding the Fourth Proportional to 1,255.70, 1,733.79 and 1,162.40

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Solution

The fourth proportional to 1,255.70, 1,733.79 and 1,162.40 is: 1,604.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255.70 : 1,733.79 = 1,162.40 : x
  2. Step 2: Convert to fraction form
    1,255.70/1,733.79 = 1,162.40/x
  3. Step 3: Cross multiply
    1,255.70x = 1,733.79 × 1,162.40
  4. Step 4: Simplify right side
    1,255.70x = 2,015,348.83
  5. Step 5: Solve for x
    x = 2,015,348.83/1,255.70
  6. Step 6: Final answer
    x = 1,604.97

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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.