Home / 1,269.26-1,760.55-1,235.56

Finding the Fourth Proportional to 1,269.26, 1,760.55 and 1,235.56

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Solution

The fourth proportional to 1,269.26, 1,760.55 and 1,235.56 is: 1,713.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269.26 : 1,760.55 = 1,235.56 : x
  2. Step 2: Convert to fraction form
    1,269.26/1,760.55 = 1,235.56/x
  3. Step 3: Cross multiply
    1,269.26x = 1,760.55 × 1,235.56
  4. Step 4: Simplify right side
    1,269.26x = 2,175,265.16
  5. Step 5: Solve for x
    x = 2,175,265.16/1,269.26
  6. Step 6: Final answer
    x = 1,713.81

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.